everyone need to start off somewhere I had a £60 Base trials bike, and I had the same problems as you, and I am still progressing really slowly after 2 years
I would say 2 things: keep your bike in a good condition and ride as much as I can, a few times in a week (if you can).
Whenever I took longer breaks, I lost loads of knowledge, that is the reason why I am building a new bike, so the fault of the bike will not make me on a break.
Start off with you balance. Track stand, pivots, just basically playing around with the bike in one place, with both brakes pulled, so you can get the feeling of the bike and your balance
after that I would do some pedal ups, and back wheel hops.
and after... well, watch videos about others, what lines do they ride and how, and then go for it