Analfreak

Hello, I am new to this forum. I am scared a bit and want to get everyone's opinion. I am a guy and I'm pretty much addicted to anal masturbation. I am not gay at all never even thought about being gay and never will. I've had relationships with girls before and they went well. I started masturbating when I was about 14, since about 15 I found one of my moms dildos and tried it in my ass. I fell in love with it. Now everyday or any free chance I get I try find something to put in my ass. I put cups up there that aren't class but plastic sturdy cups. The biggest cup I have gotten to completely fit all the way in my ass is a 6 inch long by 4 inch wide cup and I can completely fit that. I can fit up to 2 regular cucumbers in my ass fine. I am interested in buying a few dildos and want to get everyone's opinion on what I should get that would challenge me. Does anyone have any tips for me? Thanks a lot for your help.