So, how can we get Premiere to stop having issues? I'm about to switch to Davinci

Several times in the past week, I have been having constant issues with premiere pro just completely trashing my progress and I'm at my wits end today. Does anyone know why a long clip was automatically dragged over half of my project? Deleting all the clips that were there and in their place? Premiere crashed, and when I re-opened my project, there was the clip just randomly there, overwriting over half of my project that needs to be done tomorrow. Yesterday, I even manually saved my project before closing it for the day. When I opened it this morning, ALL my color grading was deleted and it was back to the original. That was hours worth of work. None of the auto-saves ever work. It always says "this project cannot be opened because it is damaged" when I try every single one. So I worked on re-doing everything today. Now the clip overwriting thing happened and I also could not recover any auto-saves. The only thing I could open was how the project was opened this morning. AGAIN erasing all my progress. I cannot afford to have no progress after two days of putting hours into my project. I hate that I have to pay monthly for my projects to lose progress frequently, having to spend more hours of my time fixing their crap. I don't know if there's a solution to this but I need Premiere to chill with the bugs and honestly I want a refund because this is absolutely ridiculous and a waste of time.