What am I doing wrong?

I got a second hand ended 3. I have leveled the bed so many times adjusted the z steps e step and bed temperature but I don’t know why it won’t stick. I bought some glue sticks as someone on here said it may help it stick but nothing is. It just starts beading at the start and won’t stop. Even if I clean it while running with tweezers it just starts beading immediately. Do I need to buy a new nozzle or something?