Should I move on to bigger birds as pets?

I love birds, and have been around them for most of my life. I've had a peachfaced lovebird, a sparrow, and two parakeets before, and for my next bird I want a cockatoo or macaw. I've been leaning more towards the cockatoo because I have more experience around them and I want a bird I can play with and bond with easier. The only slight issue with cockatoos I have is the screaming. I personally don't have a problem with it(sharing a house with 7of them for an entire summer is an excellent way to learn to block it out) but my mom wouldn't like it. The only problem with macaws I have is my brothers green macaw(RIP Ceasar) hated me and bit me a lot, so I'm fidgety around them. My brother suggested getting a pair of lovebirds, but I don't want to because my last lovebird died because the house sitter didn't keep the heater on or cover her cage, so i think getting a pair of them would remind me too much of my dearly departed Rachelle. So should I go ahead with a bigger bird or just suck it up and get lovebirds or a cockatiel?