For me ..... i am mostly active between 5.30 -9am PST due to job.... & trade only ES. So i am patient and wait for trades if they fall between 5.30-9am pst or else i do not put a trade. Also try and get a bite out of EU open.
This is such a beginner question that there is no doubt your best course of action isn't trading, but studying, and this is a long journey you are starting.
An excellent book to start is Ken Fisher, "The only 3 questions that count". Although its focus is long-term investing, those 3 questions everyone wanting to trade should know them.
After this book, read Brett Steenbarger, "Enhancing Traders Performance". This will get you an overview the multiple aspects of trading, and what's required to succeed at it.
My 3rd and last recommendation for tonight is David Aronson, "Evidence-Based Technical Analysis". A must read to understand what trading really is about, and don't let its 2nd part fool you, its possible, for some at least
Hopefully, those 3 books will open your eyes, and lead you to a successful path.
I use to have the same dilemma working similar hours and trying to find a good market to trade. I really recommend a firm call TopStepTrader (Patak Trading Partners LLC) whom trades futures and its overnight. The hours of the market are from Sunday 6pmEST to Friday 5pmEST. Its a perfect environment for traders who are looking for flexible hours. I use to trade the Japanese Yen futures after work and it has great volume from the hours of 7pm to 3am. Crude oil also has very good volume in the early morning from 6am. There are tons of different futures products to trade (i.e. corn, sugar, crude oil, ect.) and they move throughout the day. I think its highly worth looking into and if you do well, the firm even gives you capital to trade with yourself. Hope this helps.