2. Do not invite yourself to stay with friends when you travel anymore. Presumably you have a job, and the means to procure yourself a hotel. If so, do so. If not, stay home. Mentioning that you plan a visit to another city may lead to an invitation to stay with a friend or family member, which you may of course accept; assuming that "it's cool if you crash" is not. Wait for the invitation; if it is not forthcoming, this is what we call "a hint," and you should take it and make other arrangements.
3. Do not expect friends to help you move anymore. You may ask for help; you may not expect it, particularly if your move date is on a weekday. Your friends have jobs to go to, and you have accumulated a lot of heavy books by this point in your life. Hire a mover. If you cannot afford a mover, sell your books or put them in storage — or don't move, but one way or another, you will have to cope.