Am I crazy or does it sound like someone’s trying to break into my house

So on the back door it’s a double sliding door: the screen on outside has been broken so it’s no longer on the door at all (it was fine when we moved in) and now yesterday my husbands key got stuck in the door when he tried to lock it. Now today mine got stuck. We’ve lived there almost a year and had none of these problems until now. I was wondering if someone had been trying to pick the lock on the front door if that could’ve caused it to mess up?? We have a family member living with us that got into some trouble and it’s possible the guys he was running with are after him so I’m not sure if I’m being paranoid or if it’s possible they’re trying to break in