Can hormones make you question your sexuality?

hi.....im 17 and im starting to question my sexuality.........i've been single for quite long and i dont know whether its my hormones or what..........i dont wanna be a les or bi(i have nothing against bi or homo,i really dont).....i just i really like guys.....and everytime i think about it, it gets me very depress to the point of me thinking of suicide....please...i need help.....