Winter semester transfer chances?

Do I have a shot at transferring winter semester as a junior?
College GPA: 3.8 68 credits
HS GPA: 2.2
Only problem is I bombed the ACT with a 12…
EC: Lived in Europe for 6 months and volunteered at a charity shop there for 4 months. Phi Theta Kappa, 15-20 hours of volunteering and clubs in my community college. No leadership positions.
Trying to take harder math classes to look better during spring and summer. Is it a bad idea to try and wait until August until I have those harder math classes or should I just apply after spring semester? I have taken pretty much all the pre reqs for an associates. I’ll have to shoot hard for the essay I suppose.