Just Starting Out

hi everyone ! so i’ve always been interested in celtic paganism and practices, since i was a teenager at least, and that interest has had a major respark recently. i’ve been doing a LOT of research on my family and ancestors (a large portion of which are from scotland lol), but i guess im just a bit overwhelmed by the amount of information online. ive seen a lot of conflicting opinions on who can practice what, that certain things make you celtic and what that entails, which deities and practices stem from where, etc. my dad is a pretty spiritual person but never religious or practicing of anything, and i’m pretty isolated in my family in terms of the beliefs that i do have. i would love to be able to know if my ancestors were celtic and what they practiced pre-christianity, but sadly the farthest back i know and can find is the 1600’s. i know simply where my family is from doesn’t make me celtic (as far as i’ve seen) so i think that’s where a lot of my worry / anxiety comes from. there’s just SO much information online all this that im not sure where to start ? and im worried about joining many online spaces because i dont want to invade a community that i might not have a part or place in. i guess this is all to say, where should i start ? are there any major deities from pre-christian scotland i should start with researching ? or does it matter if i focus my research on scotland or if its better to just research celtic deities in general (since ive noticed a large chunk of them are irish specifically) ? (sorry this is a bit of a mess and if anything i said is misinformed, i won’t take offense to being corrected or told that. i’ve done a ton of research but ill fully admit i still feel very uneducated in all this lol) thank you :)