Judging by the post you seem to be young. There are things in life more fulfilling than relationships and sex, and this usually becomes apparent to people a little later in life.
As per your own testimony you have a number of obstacles in your life, but none that are insurmountable. You have to reflect upon what you have, rather than obsess over what you don't have. Banish these destructive thoughts and focus on appreciating small things for a while, and begin taking steps towards fixing your life, starting with your finances.
And yes, committing suicide before resolving spiritual issues, means you simply carry these issues into your next incarnation, or aggravate them.