First, we are all different and APs have different effects on each of us. While everyone has horrible side effects from Invega and other long acting injectables, there are other APs that may not be quite as bad.
Now that I said all that, unless you are under community order, a patient should be able to have at least some say in their treatment plan. Some psychiatrists insist that APs are a lifelong medication not to cure you but to maintain stability.
There is a British psychiatrist and author named Joanna Moncrieff who advocates against long term use of APs. I actually learned about her from this thread. Dr Moncrieff does concede that many times APs are necessary for short term to knock out a psychosis but rarely long term. Things such as therapy, meditation, and community/family involvement have been shown to help just as much as medication for some people. She has many books on Amazon and in digital format. Look her up and read a book or two. That way you will be informed and armed with some knowledge when your doctor tries to convince you to take these meds for life.
I've been on APs for over 20 years but still work with my doctor to take control of what meds I will or will not try and the dosage. For me, Abilify pills give me virtually zero side effects while still allowing me to maximize my quality of life. Not everyone can be successful on Abilify, which is why I said at the top that we are all different and meds treat everyone differently. I don't think all APs have awful side effects but that is a discussion you can have with your doctor. It's okay to listen to your doctor but it's also okay to question them or even find a new doctor that is more agreeable. All this is assuming that you are not under community order, which pretty much means you would have no control over your treatment plan.