This is how I figured it out, I'm only 14 and have been playing guitar for about a year 
so don't judge.

Anyway this is my favourite song off the newest Pennywise album.

(Intro)
E|------------------------------------------------------|
B|------------------------------------------------------|
G|--9---10-9-7-----9---10-9-12--------------------------|
D|7----7---------7---7----------------------------------| the rhythm should be
A|------------------------------------------------------| easy enough to get
E|------------------------------------------------------|
(End of intro)
E|------------------------------------------------------|
B|------------------------------------------------------|
G|--10-9-7----------------------------------------------|
D|---------10-9----7------------------------------------|
A|------------------------------------------------------|
E|------------------------------------------------------|

(Verse)
E|------------------------------------------------------|
B|------------------------------------------------------|
G|---------------5-------------7--9--7------------------|
D|-7------3------5------5------7--9--7------------------|    (x2)
A|-7------3------3(x17)-5------5--7--5------------------|
E|-5(x17)-1(x17)--------3(x6)---------------------------|
P.M...........................


(Pre-Chorus)
E|------------------------------------------------------|
B|------------------------------------------------------|
G|------------5-5---------------7-----------------------|
D|--7-7--3-3--5-5--5-5----------7-----------------------|
A|--7-7--3-3--3-3--5-5(this x4)-5(x8)-------------------|
E|--5-5--1-1-------3-3--------------------*7*7*5*5------|   *= Harmonics

(Chorus)
E|------------------------------------------------------|
B|------------------------------------------------------|
G|------------5------------7--9--7----------------------|
D|7-----3-----5-----5------7--9--7----------------------|
A|7-----3-----3(x16)5------5--7--5----------------------|
E|5(x16)1(x16)------3(x6)-------------------------------|

(Bridge)
E|----------------------------------------------------------------|
B|----------------------------------------------------------------|
G|----------5-5--44--7------------5-5--44--------9(x8)10101099977-|
D|33-3-33----------5----55-5-55----------5-7----------------------|
A|33-3-33---------------55-5-55-----------------------------------|
E|11-1-11---------------33-3-33-----------------------------------|

(Bass)

E|--------------------|
B|--------------------|
G|---9--10--7---7-----|
D|-7---7---7----7-----|
A|--------------5(x7)-|
E|--------------------|

(Last part of Song)
Basically the chorus with this at the end:
E|-------------------------|
B|-------------------------|
G|7------------------------|
D|7-7----------------------|
A|5-7----------------------|
E|--5----------------------|

Order
Intro
Verse
Pre-chorus
Chorus
Intro
Verse
Pre-chorus
Chorus
Bridge
Final Chorus and last part of song