Hey there! Welcome aboard!
I can't comment on being AB (an Adult Baby, who likes to regress), but as for being DL (a Diaper Lover, who likes to wear and wet)… the journey for me went as follows (all the Cs!): curiosity to try them out, then comfort having them on, then convenience to use them, then confidence to go about my day, then carefree in the blissful state of padded life.
As for trying, don't go overboard! Not all are 24/7 wearers, some of us are occasional users. Many providers will offer sample packs of two, so you can try and see what size and style fits you and works for you (and get some practice putting them on properly). Don't forget you also need at the very least some anti–rash cream and some cornstarch powder. Plus some bags for disposal.
Also, if you're new here, I would take some time to explore the different topics and threads on the forum. You'll find answers to pretty much any diaper related question (including how to keep your padded life discreet), and lots of sage insights and advice.
Plus, don't go shouting about your new found interest among your friends and family (if you want to keep them). This forum is pretty safe, real life sometimes less so!
Hoping you find happiness, like many ABDLs.