On Yahoo Finance UK main page I was surprised to see "professional" developers testing a live stream of their working conversation in which one gave his phone number to another and said "I doubt anyone's actually watching this". WTF.
I’ve built an Excel Add-in which you may find useful, it connects to Yahoo Finance, IG Markets and Quandl. It provides 100+ new formulas for live, historic & fundamental data etc https://www.excelpricefeed.com
Once you do that, just look for entry points. If you want to hold them long term then look up “dollar cost averaging” (the safest investment method imo).
I also listen to yahoo finance’s live show to get an idea of what’s going on in the market. Helps make sense of things