Should I live in this misery or have a bridge to fix my horrible buck teeth? (photos)

Your bridge could be loose because it just doesn't fit the prepared teeth or because your bite is loosening it. Either way, it should fit properly without gaps. If it continues to be loose, it can cause chipped, broken or decayed teeth over time.

It is difficult to fully answer your question without xrays and photos. If the teeth are strong enough and supportive enough, it seems that you could do a bridge. Since you have 3 missing teeth,#9,10,11 between the 2 anchor teeth on the left, I would go further back on the bridge to include one...

It is very common to place dental implants in the 7 and 10 postitions, then place a four unit bridge across the front.  When placed properly, a four until bridge can be a very aesthetic option for missing front teeth.  These are very durable bridges that should be fairly easy to keep...