Advice needed on what to do

im not sure if this is the right subreddit but, i recently got into a relationship with my crush a few days ago but i've been having these weird thoughts about it. These thoughts have been about if i really like her and if im just faking it. I really like being with her and I like her a lot. I know these thoughts are just me overthinking things but I don't know what to do to get rid of them. Thanks for any help in advance.