What are some common words or phrases I should learn? Finding resources to learn Japanese feels difficult and I'm not sure where to totally start. If you know of any useful phrases, words, tips or tricks please let me know! Have a wonderful day and keep studying!😃

See a translation

A ha dou yu imi desu ka? (romaji)
Aは　どういう　いみ　ですか？
What is A? (Technically "What does A mean?")

B ha nihonngo de nanto iimasuka? (romaji)
Bは　にほんごで　なんと　いいますか？
What is B in Japanese?

C to D no chigai ha nan desuka? (romaji)
Cと　Dの　ちがいは　なんですか？
What is the deifference between C and D?

Yoroshiku onegai shimasu (romaji)
よろしくおねがいします。
yoroshiku onegai shimasu
It is a very useful phrase. Many Japanese people use this word almost everyday. Basically it means "please treat me well." Try to use anytime you ask something or doing something with other person/people together. It is like "Thank you in advance" "I will really appreciate the help" "I am going to enjoy your company" etc.

FYI
I believe that the most important thing is to find something you really want to enjoy in Japanese.
It maybe a Japanese ancient culture, or pop culture, or latest technologies or Japanese history or whatever.
What do you want to do with competence of Japanese knowledge?
The strong desire to understanding Japanese language will always helps you.

I also think this website is really useful.
https://www.tofugu.com/learn-japanese/