Haf to stop making empty promises

i think i'm letting studies take over my life again...i've made so many promises to others on my time that i cant seem to keep that its frustrating and disappointing for both them and me. I realli got to stop asking pple out when i know that there is this possibility that it mite not happen becos of work...The thing is alot of the times i realli think i can make it and i realli want to get out of the house but as i get closer to the date i realize that i cant cos the works not complete...I realli apologize to all my frens...