Hey Subgirl,
Before choosing a 'dom' make sure you check out a few posts from that person and make sure it's the right thing for you!
Ironically as a Submissive female, choosing your Dom is where you have ultimate power over all of these men on here!
Feel free to challenge doms, ask them questions and be patient until you find one that works. Ask them how they would go about incorporating some of your submissive / bdsm fantasies into your life. Get them to give you examples of what they are into, ask about other submissives they've had and their relationships with them.
Learning about a doms relationship with other submissives in the past will give you a lot of insight in what they are looking for from a submissive too and what they will likely be training you up to become.
Don't feel like you have to rush into this straight away. If you ask all of them similar questions or have chats with a few that respond you can then cherry pick the ones that give you answers you like.
This shouldn't be a quick decision as there are like a million wannabe doms for every female sub and often newbie subs make bad decisions and take one of the first few that contact them and end up having a bad experience. (Been there done that!)
From experience anyone who just replies 'kik me' usually just wants a quick fix and probably isn't interested at actually domming you properly and just wants to see you naked, give you a few commands, masturbate to your nudes and that's about it. The reason why I say 'properly' as even as a sub you could actually dom most of these wannabe's.
E.g. If you told them to get their dicks out and make them watch you strip and gave them instructions on how to masturbate when and where. It's amazing how many would forget their dom role and follow your orders lol.
Also my personal advice is to stay away from any blackmail play or sharing your nudes too soon (especially showing face!). What I've found from my own experiences with new subs is they tend to find everything new and exciting early on and are generally too trusting. This makes them Share nudes quite freely. But then get caught out when the Doms weren't as they thought and their nudes end up on online and start to spread like wild fire!
If you want to have the real submissive experience you should find someone who you WANT to submit to.
Happy hunting for your Dom, have fun, stay safe! X