How do I master my emotions so I can become successful:

Attack life.
Some people read an online thread on Quora — or a latest ‘7 steps’ blogpost and assume it can the cure for all of their ails.
This is simply not true, and the only route to greatness begins with personal growth. You mentioned emotions and life in general. So you seem to be a fairly reflective person.
Couple this reflection with MASSIVE action.
In what domain that comes is your choice. I have suffered from relationship problems in my past that damaged my partners and had damaged me. My decision on that basis was to attack my weaknesses.
Don’t worry that it needs to be tactical and refined. Much like an infant learning to write words having just learnt the alphabet — the important thing is to start and aggressively so.
Be a blunt instrument — it is part of the journey of becoming refined.
For me > this meant googling best selling relationship books and articles. I read these books:
Men are From Mars, Women are From Venus: John Gray: 9780061232053: Amazon.com: Books
Amazon.co.uk: Allan Pease, Barbara Pease: 9780752846194: Books
I read countless articles see here >> Google
And I told my friends I WOULD read them — and to hold me accountable if I did not.
And THEN, only then, did I really begin to become closer to understanding the route to my relationship happiness and continued on my journey.
Decide what your blunt instruments will be, whether books, people, courses or otherwise.
And attack attack attack.
This is how the journey of success with my emotions began for me.
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I’m 30. I’ve lived in 9 Countries. Travelled to 50+. Raised money 2x for Tech Companies. I’ve worked for Deloitte. Been homeless. Run 20 marathons. Am a trained British Soldier.
Here are the: ‘Things I Wish I Knew When I Was Younger’: