best of luck to you i was in essentially the exact same situation a decade ago i was 22 and noticed a lump and shrugged it off for awhile until eventually i was losing my mind over it and kept me from sleeping it was 13 months from when i got diagnosed to when i was in full remission and the best advice i can give is surround yourself with supportive people its a tough ride but trust your doctor and have faith in the progress weve made in medicine