should i do javascript or java tutorials first

Answer 1

Read the first question in FAQ page, it guides you in choosing your path. Java & Javascript are different, although there are similarities in syntax. It's ok to start either one without firstly learning the other, if you start learning in SL.
P.S. For next time, please avoid writing a sentence, question or code into the thread tags 👍
https://www.sololearn.com/faq

Answer 2

You learn what you want learn but try to learn the concepts and built in libraries .