Converting to Catholicism

[21stCenturyThoughtPrison]

Has anyone here done this? I've been considering it for many years but I'm not sure how it works, or what my first step should be. I was baptised as a child (Baptist) so not sure if that changes anything. Any advice or experiences gratefully received!

TIA

Yes, I did it when I was 22. Best thing I've ever done. I was raised a practicing Anglican so had to be received into the church and confirmed again. I did the RCIA as I was told I had too, but hated it. It was more of a beginners guide to Catholicism and the catechists didn't really know their stuff. I'd been to a Catholic school so knew the basics. I believe the programme is better now though.

Find a church you like the feel of, then talk to the priest when you feel comfortable. He'll point you in the right direction.

I did, about 25 years ago. I just spoke to my local priest and had to go for lessons for a few months (was going anyway for wedding preparation).
Being already baptised just means you aren't starting from scratch, as it were. You don't go through the same Confirmation and FHC as children, there is a much simpler service and it's usually fairly informal. Oh and you will do your first Confession beforehand (first one leaves you with a massive sense of relief, it's later that it becomes annoying!).
I can pretty much guarantee that any priest will be delighted to discuss it with you.

I did it earlier this year. It was a wonderful experience.
I visited a few churches, found one I liked and contacted the Priest.
I started the RCIA last October (they start around this time of year) and then had my confirmation at Easter. I had been christened in a Congregational Church which was accepted.
Honestly, it's one of the best things I've done. I'm happy to discuss my experience further if you'd like to PM.

Life long catholic here.

Your first step (Which I presume you are doing) is to start coming to Mass regularly and get involved in the church. (You don't have to join all the groups and activities and be on rotas, they are not essential, but it would be good to try to start to feel at home in the church community).
If you haven't found a church home yet. Visit a few parishes (If there's more than one near you) and different Masses at each parish. They can vary slightly in atmosphere and music.

Second is speak to the priest. He will direct you from there. You will have to do some kind of preparation to check you know what you are signing up for. This may take the form of a few friendly chats with the priest, or it might be an RCIA course, you and others in the same situation as you taking lessons from a catechist.

As you are baptised, you will not be re-baptised (That's not a thing in the RC church) you will be go to confession. Then at a Mass, be confirmed and recieve Holy Communion. This is sometimes done at the Easter vigil service, but can be done at another time.

I hope that helps.