How can i lose weight before i go see my SO again??

I want to lose at least 40-45 pounds before summer (that's when ill see him) he tells im beautiful but i want to believe it myself! I go tanning n to the gym when i can (besides working late hours + school) i eat healthy & drink water or tea *No POP/SODA** HELP!!! ** & NO i dont want your supplements or pills that i cant put in anything* ( i have a hard time swallowing large pills BUT i can swallow small pills) PLEASE HELP ME!! *no rude comments* i do have a fit bit opinions!! **& i dont do meat at all it hurts my stomach**