If you hadn't said anything, I don't think I'd have seen a swastika and still don't actually. The bottom right and bottom left of the 4 are clearly cut off. In my opinion, there isn't any room for interpretation. So I wouldn't worry about it.
The thing is it's very easy for us to nitpick our tattoos and find all the flaws in them. Tattoo regret is common and you can get through this. As Hogrider said, give yourself some time before doing anything. But seriously, I think you're fine.
Try to enjoy it. It's a sick tattoo. What video game is it from?