Tonight I am going to put a dildo up my bum to see if I could go gay. What are your tips?

As it says in the title. I've got a free night so planning to have a great big masturbation session and may as well stick a dildo up my bussy.

What are your routines when you're preparing to get anally penetrated? Are there any beginner mistakes I need to watch out for? Any sensations that could suggest I need to stop and rest?

With this being a solo activity, I can take things at my own pace but it would be nice to get really deep and fast if possible. I've got water-based lube which I've heard isn't the best for anal but I'll have to make do with it.

Thanks in advance and I'll let y'all know how it goes.