as dmjw01 said, there could be a few reasons as to why the a/c veered to one side and he/she
has mentioned the obvious ones, but what I will say is a big well done for sorting it out.
Whether it lifted or you lifted it, getting it in the air with full juice and progressively raising the flaps to a safe climb out was a decent piece of positive airmanship.
Dodgy looking or not....
Ive headed towards the runway marker boards a few times I can tell ya and sometimes ive hit the brake/rudder so hard to steer away i was sure it was gonna tip over. (PA28 - the early days...)
its all learn learn learn!
speedy