Keep up the good work, practice a lot and to smooth you out a bit why not try using a responsive yo-yo, I think the main problem you seem to be having is the yo-yo goes a touch crazy and then it forces you to either abandon the trick or hop around trying to regain control, I think if you tried playing around with some tug responsive throws that your control over the yo-yo would grow a LOT which translates to longer more complex tricks being able to be completed, less tilt which inevitably leads to longer spin times. The things you CAN do with the little amount of time you have been playing is astonishing, keep it up, stay positive, and keep practicing
P.S. If you don’t have a spare bearing or a responsive yo-yo you could do what I do every time I get a snag or slipknot… Snags I just start looping until either I mess up and hit myself in the face (lol), or I get bored. Slipknots however, USUALLY, will turn an unresponsive yo-yo into a tug responsive one. Just a little food for thought.