Best bet is to just get used to holding back or down-back any time you're attacking. If you want to quickly learn timing on charges, try this: start with your stick (pad/hitbox/whatever) at neutral and do a basic s.lp, s.mp, s.hp x2 chain. When you start doing the heavy punches, start charging back. You should be able to charge a napalm shot that will combo off of the s.hp x2.
Once you've got that down, time to level up a bit. Do a basic launch into restand combo.
c.lk, c.mk, c.hp
j.mp, j.hp, j.hk
s.lp, s.mp, s.hp x2 xx napalm shot
Congratulations, now you're charging during a combo. Ready to level up again?
s.lp, s.mp, s.hp x2 xx lp Napalm Shot (it's important you do the light punch version)
s.lp, s.mp, s.hp x2 xx lp Napalm Shot
s.lk x2, s.mk x2, s.hp x2
Now you're working on the light attack links after light Napalm Shots. Don't worry, it's not the hardest link in the game, but it's pretty necessary for higher level combos.
The final charge thing to learn in combos is that during a s.hp x2 you have enough time to charge one of her down/up charge moves (trigger, quake, pillar). Start practicing doing s.lp, s.mp, s.hp x2 xx Pillar.
Once you've got all that, you've got most of the stuff to go nuts with Parasoul's combos