In order to get to know about some other brokers, I would suggest having a look at this thread:
https://www.elitetrader.com/et/threads/list-of-best-regulated-brokers.362682/page-8
It has a pretty good collection of regulated brokers providing good leverage.
Well the OP has come up with a great list of regulated brokers from which you can choose any that suits you, some of the good ones I know from the list - fxview, fxpro, ic markets, tickmill and xm.
Yeah it is but I think this list has a pretty good collection of one of the reliable brokers, a testing on demo accounts would definitely help in finding a suitable one according to the requirements.
Exactly, one should make strategy on their own after carefully examining the market because only a trader can know what kind of strategy would be useful for him.
I also think the same, if a trader wants to stay in forex for a long run, then he must understand that the thing which requires to excel in forex is knowledge and appropriate skills.