This is my first tab, so I'd love some tips to improve my tab writing or structure. 
Whatever you'd like to call it. I couldn't figure out the chord in the first verse, so 
please leave a comment if you figure it out, or if anything else is wrong. Thank you and enjoy!

Intro x2

e|---7---4---2h0------------4---7-----------------------------|
B|---5-----------2h0----5/7-----5-----------------------------|
G|---6--------------------------6-----------------------------|
D|------------------------------------------------------------|
A|------------------------------------------------------------|
E|---0-------0----------0-------------------------------------|

e|---7---4---2h0------------4---7-----------------------------|
B|---5-----------2h0----5/7-----5-----------------------------|
G|---6--------------------------6-----------------------------|
D|------------------------------------------------------------|
A|---0-------0----------0-------------------------------------|
E|------------------------------------------------------------|
                                        First Ending
e|---7---4---2h0--------7/9----4~-----|--------------------|
B|---5-----------2h0-----------5~-----|---5--4--5--7-5-----|
G|---6--------------------------------|--------------------|
D|------------------------------------|--------------------|
A|---4-------4----------0-------------|--0--0--0--0--------|
E|-----------------------------0~-----|--------------------|
Second Ending
e|----------------------------------------------------------|
B|---4h0--4/5-----------------------------------------------|
G|----------------------------------------------------------|
D|----------------------------------------------------------|
A|---0------------------------------------------------------|
E|----------------------------------------------------------|


Verse 1 x2
I can't figure out the chord between the Em and A, sorry :/
e|-------------------------------------------------------------|
B|----2------------9------------------9------------------------|
G|----2------------9---9----9---------9----9-----9-------------|
D|-------2-------------9----9--------------9-----9-------------|
A|--0----2-------0---0-----0--------0----0----0----------------|
E|-------0-----------------------------------------------------|

e|-------------------------------------------------------------|
B|----2--------------------------------------------------------|
G|----2-----------------4--------------------------------------|
D|-------2--------6-----4--------------------------------------|
A|--0----2-----6--6-----2--------------------------------------|
E|-------0---4----4--------------------------------------------|


Verse 2 Strummed x2
e|---4----------------------------------------------------|
B|---x----------------------------------------------------|
G|---2----2---------4-------------------------------------|
D|---2----2----2----4-------------------------------------|
A|--------0----2----2-------------------------------------|
E|-------------0------------------------------------------|


Verse 3 x2
e|--7--4--2h0--------7--------------------------------------|
B|--5---------2h0--------5--5--5----------------------------|
G|--6-------------------------------------------------------|
D|----------------------------------------------------------|
A|-----------------0---0--0--0------------------------------|
E|--0-----0-------------------------------------------------|


e|--7--4--2h0--------7--------------------------------------|
B|--5---------2h0--------7--7--7----------------------------|
G|--6-------------------------------------------------------|
D|----------------------------------------------------------|
A|-----------------0---0--0--0------------------------------|
E|--0-----0-------------------------------------------------|


Verse 4 Strummed x2                Second time:
e|------------------------------|-------------------------|
B|-----------------------------|--------------------------|
G|---2-------------6------4-----|---4--4----2~------------|
D|---2------2------6------4-----|---4--4----2~------------|
A|---0------2------4------2-----|---2--2----0~------------|
E|----------0-------------------|-------------------------|


Outro
e|---7---4---2h0------------4---7-----------------------------|
B|---5-----------2h0----5/7-----5-----------------------------|
G|---6--------------------------6-----------------------------|
D|------------------------------------------------------------|
A|------------------------------------------------------------|
E|---0-------0----------0-------------------------------------|

e|---7---4---2h0------------4---7-----------------------------|
B|---5-----------2h0----5/7-----5-----------------------------|
G|---6--------------------------6-----------------------------|
D|------------------------------------------------------------|
A|---0-------0----------0-------------------------------------|
E|------------------------------------------------------------|
                                        First Ending
e|---7---4---2h0--------7/9----4~-----|--------------7-----|
B|---5-----------2h0-----------5~-----|---5--4--5--7-------|
G|---6--------------------------------|--------------------|
D|------------------------------------|--------------------|
A|---4-------4----------0-------------|--0--0--0--0--------|
E|-----------------------------0~-----|--------------------|