It is hard no doubt but if you have confidence in yourself and work on enhancing your knowledge then making money in forex is not gonna be very difficult for you.
In my opinion, trust is directly linked with the regulations. I always go with brokers who are backed by strong regulatory bodies, so you have someone watching over brokers for safety of your funds.
Not sure if you are looking for the high leverage or best leverage. If it is about the former one, then you can check out fxview or hotforex, as their leverage is capped to 500x. Plus regulated as well.
If you want to know what is the best leverage, then that should be up to you. Even though I...
Can go through this thread.
https://www.trade2win.com/threads/list-of-best-regulated-brokers.240265/
OP has done a great job by compiling this list. It’s really helpful.
Emotions can sometimes become a huge barrier to your trading. So, it's always advisable to work seriously on your emotions so that your trades can't be ruined.