For years I used a #Twitter app but it stopped working when the #MuskRat decided that such apps should no longer be perrmitted access, so I just stopped reading #Twitter - I have plenty to read on #Mastodon. But now that he's pulling the plug on API's I decided to just delete all my previous tweets. There are several tools that will do this for you but some only delete a few tweets and then force you to pay to delete the rest. But there is one called TweetEraser at https://www.tweeteraser.com/ that has a free eraser that will let you delete all your past tweets for free. Their interface isn't the most intuitive and you might have to click a few things to find the screen that lets you view and delete your tweets, and at first it will show a page of only 10 tweets. But if you check the box(es) to delete one or more tweets, it will asks you if you just want to delete the ones you have checked or all those it has found. If there is a limit on the number of tweets it will delete, I must not have hit it (then again I was not a profific tweeter).

TweetEraser also has paid options but unless they have found a way to get around the API removal, none of their options will work in a few days. So if you want to get rid of your past tweets en masse while you still can, maybe check out the free eraser at TweetEraser and see if it will do the job for you.