I have a keyboard problem

Hi everyone I used to have an issue with 3 sticky keys (6) and (y) and the (tab) keys. It's partially sticky, like i push those buttons once they type 2 or sometimes 3 times. After a certain update this issue stopped suddenly. But after the 2 latest updates several keys that began making the same issue, like more than 7 keys. some of them are major keys like (space bar) and (backspace). Please i need your support and help concerning this matter Thank you so much