Good to see you. A good place to start is with the T212 YT channel, there are dozens of videos for beginners wishing to learn the basics not just about using the platform but trading in general.
Then you could read the help articles on here too and then open a demo account to get a feel for the environment, test out and analyse what you’ve learnt.
On YT you will also find many other experienced traders sharing their knowledge, I read books and checked out multiple platforms before I got going and I learned about investing before I started devoting time to learn trading but all in all the most helpful material I’ve digested has been found on YT and the learning is an ongoing process for me, I don’t believe I will ever stop learning new things.
And though I used demo accounts here and elsewhere first and found it really useful, I found the learning really takes off when you’ve got skin in the game, demo trading can never replicate live trading in my view but I wouldn’t skip it, it’s part of the process.
Best of luck on your journey and always ask if you need something, there’s many good people here that do their best to help.