Aloha,
Firstly, welcome to World of Warships!
Secondly, as some have said watch videos from CCs such at iChase! We also have a "How it Works" series on YouTube
Keep in mind, these are VERY basic mechanics.
Other than that, the BEST advice I can give you is the following.
1: DO NOT hurry! Take you're time, you can speed up the tech tree lines if you'd like, but it is 100% better to take your time and learn mechanics, capt skills etc.
2: Division with a friend, or find a clan (see the clan recruitment section in these forums). Playing World of Warships is a completely different game solo than it is with a division! Yes, Teamwork is OP!
https://forum.worldofwarships.com/forum/173-clan-recruitment/
Other than that, a lot of the advice from the community will be pretty clear and helpful! If you have any questions or curiosity about anything feel free to PM me!
Mahalo,
-Hapa