Struggling with beta blocker side effects

I have been on various beta blockers, but for the past year and half the side effects have really begun to affect my life. Some of the side effects I am trying to deal with are dizziness, especially when bending over/standing up/walking too long/standing too long or suddenly turning my head. I generally feel so fatigued and anxious about my symptoms that I just want to lie in bed all day. My family is starting yo resent me because they cannot help and I am so depressed most of the time. I feel anxious from the moment I wake up until I sleep, wondering what horrible symptoms I have to battle today. I recently changed to a new beta blocker but I dont really notice an improvement. I feel hopeless and have gained a lot of weight in a year and a half. Trying hard to stay positive. Anyone else have the same experiences I wonder? Going back to my doctor hoping for some answers. I am 28 years old and feel like this has taken over my life.