Firstly, why did you change from something profitable to moving on to day trading indices and gold? Was it the high pace of things? When you traded stocks, were the UK Bluechips, AIM, US Stocks?
Day trading fundamentals on these things you just have to accept you can't do. If your looking at an...
There are only two books that I would highly recommend to anyone:
How To Trade Stocks - Jesse Livermore
Market Wizards - Interview with Top Traders - Jack Schwager
Read the above and take good notes.
Anything regarding Price Action Theory should be looked at - you can get it all free online...