With respect to conditioning, I'm sort in the same boat, started doing suicides(baseline>freethrow line>back to baseline>half court line>back to baseline>far free throw line>back to base line>far base line>back to base line), only to realize I was winded after 2. Felt pretty bad on myself about it.
Anyway getting back on track, I started doing half and 3/4 length runs, ie only to half court or the far free throw line (as noted above), just to ease myself back into things until my wind comes back.
Also, this probably wouldn't hurt, but look up some football cone drills. As you get better, space them out further, or more cutting, whatever.
Anyway, hope you (or someone else) find this helpful in some way.