How to be a good girlfriend?

First things first, I don’t want any shame or negative comments, I’m coming here for honest advice. With that being said, I’m a shit girlfriend and idk why. Without dragging it on with all the details, basically I get mad at a lot of things I shouldn’t and then later on realize that it was dumb of me to get mad. For instance, yesterday he went to play football with his buddies, I had no problem with that. I realized after he left, my purse was in his truck. But afterwards he said he was finishing the nfl football game and then be home. Got aggravated but was passive aggressive and said “awesome.” Then I noticed the game had been over for a while and flipped out. I flipped out over wanting a time when he’d be home and he feels like he shouldn’t have to do that. That I should just say “see ya when you get here, have fun” and in some aspects it should be like that. But I was justifying it with saying that I was sitting at the house alone all day cleaning while he was out having fun, he had my purse so I couldn’t go out and do anything if I wanted to, and that the day before we did a full day of stuff he wanted to do so I thought he should want to come home. It’s little things like this that can trigger me to get upset. But it happens more often than not. I don’t WANT to get in a fight. It’s just at the time, i feel like I’m completely in the right and then it’s not until the next morning or until things get too heated that I realize I’m not. I just feel he is constantly out and that every time we do go out it’s stuff he wants to do (going to a sports bar to watch 2 or 3 games of football with his friends is usually a every weekend thing for us) and then when we do get home and have time for us to hang out, his neighbors or aunt and uncle (who neither of us can stand) come over unannounced and stay there for hours. That is literally every weekend. And when I ask to do something like go to the apple orchard, i have to beg for his time. So what can I do to fill up my time while he’s gone so I don’t think about it? I don’t have any hobbies, I welcome any ideas on what you guys like to do. I realize we can’t spend every waking moment together, and idk why I get as mad as I do, honestly. Just need some advice on what I can do to fix this problem I have. Thank you!