Anal douching

So my boyfriend and I have tried anal before and I honestly just don’t like it. I hate the feeling of feeling like I have to go to the bathroom!! I would like to try it again so I can learn to like it, I’ve been reading a lot on this page of some people saying that it feels really good and since my boyfriend is always asking me to try it again I would like it to feel good but I need help on how to make it feel good!! Someone on here said to douche but I’ve never heard of doing that (anally) so how do you do it?? (I’ve never douched before at all so I don’t know how) and I do plan on getting a butt plug because I heard that helps too, along with lube. Sometimes when we have sex he will put his finger in and it does feel good but I want to ease in and try to have anal more often without that gross feeling! Other than lube and a butt plug, what else can I do to feel better about everything and to make it feel good to where I want to have anal all the time like a lot of people are saying on here lol