Salary will always be low because there is no serious negotiation regarding the salary. If you want a bigger income then search for profit not for a greater salary.
Exactly.Do not wait for a salary increase.Instead,seize all the opportunities that will generate profits because they might not come again.Once you made it,you will no longer make a salary increase as a big deal because you already gain huge profits from other sources of income even if it means working beyond your duty hours.