Switching from Robinhood to TD

I’m a pretty new investor with relatively low money (less than $2000), and I started out on Robinhood. I’ve heard lots of mixed reviews on it, and while I don’t find it absolutely awful, I’ve been entertaining switching to TD Ameritrade at some point for the increased information and education they offer, combined with things like ThinkorSwim and paper money. My question is, when should that be? Should I just do it immediately, or is there no real point until I start investing more money? Sorry if this is a stupid question, but anything would be appreciated. Thanks!