As per your chart, your mind would be relatively less calm and peaceful and you would have lot of difficulty to focus on your studies. You need to learn to tame your mind by various ways of counselling, which will surely help you.
You may need to continue your efforts persistently. Sometimes that is what required and just when success could be just around the corner, you need to be pushing harder.
You have a pretty good life ahead in terms of both, your career as well as your personal life.
Simha Lagna with the Lagna lord Sun posited in the third house in debilitation and in conjunction with Mercury; Fourth lord Mars posited in the Lagna with aspect on the fourth house; Venus posited in the fourth house; Exalted Moon conjunct retrograde Jupiter and retrograde Saturn posited in the tenth house.