NEVER try to force creativity but ALWAYS hammer home your work to companies and individuals, persistence will always pay off no matter how hard you try. Once you have a lead, keep at it and the rest will follow. Secondly, never compromise your morals or your ethics for anything. Always keep them firmly at your forefront and if any project tries to make you put them aside for money, leave. There will always be another project.
As composers, creators, I understand that versatility in your writing is key. Mastering a variety of genres can only improve your chances of success in an industry that exists primarily with brief work. Saying that, make sure you take the time to be yourself.
Don’t lose hope, there is always a process for everything and sometimes you need to be prepared for a long wait, a rejection, a gig lost... all these things can give you some frustration but be sure that if you love what you do and you are willing to stand for it you will get your piece of the cake.
Fight for your dreams. Because dreams... are the gears of your life. There is a lot of chances in this world, in this industry, and for sure, everyone has its own space on it. So... If music is your dream, just fight for it...And be humble and honest with yourself and with the others.
Do not be afraid to work and do not whine when you've got too much work to do. Do not forget that there are many available job positions for, say, graphic designers / 2D artists / programmers, but there is usually only one for the composer. So if you have any kind of work as a composer – stick to it, always try giving 110% out of you and it will be paid off sooner or later!
Don´t ever give up and take it seriously if you really want to be successful on this. Networking is a really important but do not act like a jerk. I already know cases of people that are trying to start in the business but their names are already in the “black list” of fellow composers and professionals of the industry.