#1
My instructor said these are usually hard ones to come up with given the odd timing. So he challenged me to make one up. I need some advice DO NOT GIVE ME THE ANSWER. just give a path to follow, sort of way... any advice would be helpful
GEARZ

Schecter Hellraiser
TS 808 modded tubescreamer
MXR six band EQ
boss DD-3 digital delay
Boss CE-5 Chorus Ensemble
ISP Decimator
1998 Marshall JCM2000 DSL 100
Avatar 4x12
#2
Meaning 7 notes within a 4/4 measure? That would entail 7-tuplets. You likely want to begin and end on a pleasant note.
#3
Would bends count?
Music stores give all gear a +50 to Charisma.

Quote by one vision
Why not chromatics? Chromatic harmony was the "new thing" in the romantic era.
Quote by BassFishin
Problem:
Fish isn't meat.
Quote by CodeMonk
Pics or its a DS-1
#4
how much room do you have to work with?

I like to use symmetrical patterns for creating patterns, one that begins on a long note and progresses in speed to the middle, then slows down to end on the same length of note as the beginning

so for example, consider the following seven-note pattern:
2+1+1+1+1+1+2 = quarter + eighth + eighth + eighth + eighth + eighth + quarter
this would work well in 9/8.

Other patterns can be formed in similar ways. After that, it is all a matter of applying this rhtyhm to various combinations of notes from the pentatonic scale
#5
Why is it hard exactly?

Take any seven notes from the pentatonic scale, you've done it...

Personally I'd probably do a lick based around a "2+2+3" motif, but that's pretty close to giving you a decent answer already.