Can I still save my controller?

I hope you can help me and for example in Fortnite I push forward once and let go again and then he automatically continues to run and then he stays again then exactly the same again I want to invite a friend, for example I press his name to invite him then he goes up again to 20 other friends that is on the left stick can you do something there?

I think that's some kind of software bug you can't fix or you just screwed it up a couple of times on the table. If it is not an expensive controller like the xbox elite then I would advise you to buy a new one