
Butterfly > near Mirage > Legover > RPT

Butterfly > near Pickup > Illusion > RPT

Butterfly > Far Legover > SS Mirage > RPT
Those are good warm up drills, so once you hit them, try to get more than 1 repeat. Also, the near mirages and far legovers will help you eventually learn DLOs. For DLO the key is doing symple (fake-symposium) legovers, so drill those if you aren't already.

Symple Legover > SS Symple Legover (symple ATW?) > RPT
How are your infinties?

Butterfly > Infinity > Infinity
That will get you started. Once you master that, try hit 10 infinities. Here are some other butterfly drills. You'll be BOPpin' around in no time

try these:

Butterfly > Osis > Mirage > RPT

Butterfly > SS Butterfly > Pickup > RPT
Don't worry too much about sets. For newer people sets are just ADD hunting until they get the basics down. I'm not going to give you any set challenges because you shouldn't be worried about them at this point. 20 tiltless consistently is way more important.

Tri-force drill, 4th level.
Which means basically:

right clip > left clip > right clip x 2 > left clip x 2 > right clip x 3 > left clip x 3 etc... level 4 would be one more iteration of that drill 20 contacts total. Once you finish level 4, try to get to level 5, then all the way up until have the whole Tri-force, rescue Zelda and all that shiz.
That will make your clippers much stronger and you will be able to start ducking and spinning out of them.
Also, for learning DATW I would recommend building and using a dexerciser. See my topic on it
HERE
Good luck my man. I am your age too (25 right?) and I didn't start freestyling seriously until I was 24. So don't get discouraged by all the kiddies who are 6-10 years younger than you and already rippin'. You can still pick this sport up in your mid 20s and get good if you stay positive and work hard at it.