Should you day trade? Thats almost an impossible question to answer since we don't know anything about you... but I will give you my experiences and you can take it for what it's worth.
I started DT years ago and was a miserable failure at it. I lost a lot of money. I tried numerous "systems", read tons of books and nothing really worked for me.
Then about a year ago, the tide started to turn and I now consistently have winning trades over 90% of the time.
I stopped looking for the holy grail. I stopped reading the "experts"... someone else's system, ignored all the trading advice, ignored the newsletters, trading guru's, etc... I could go on.
I begin to relax, stopped playing with scared money and slowly developed a method that worked for me... something that was mine, not working someone else's system, but working my plan of action.
I began to trade in my own bubble... set up my own trading rules and stuck by them... no matter what. I DO NOT break these rules. I developed discipline.
It does no good for me to list them here because they probably wouldn't work as well for anyone else.
The point is... day trading is a personal business that depends on you developing your own personal style, discipline and develop an acute sense of when to filter out all the bullshit you read and hear on the subject.
Having said all of that, If there is one thing I would recommend is this....
Find yourself 5 or 6 big cap stocks across industries.... study them and how they trade. Watch them for a couple of months... watch how they fluctuate and react.. become intimate with them and know them like the back of your hand.
When I trade, I only watch these stocks and nothing else. I don't flit about looking for stocks or the hottest thing or bottom feed, penny stocks, gaps, etc... My focus is entirely on these 5 or 6 stocks... NOTHING ELSE. Develop confidence in them.
Slowly develop trading signals that work for you that fit around your new best friends.
When you limit your focus, improve your discipline and trade signals that you develop and that fit your personality... quit trading scared and believe in your positions... you will be successful. It really is that simple.