hello im new

hello my name is monica and i am starting my weight loss journey... i im 5'4 401 lbs i ave 50% of my kidneys i have been sick this last year with kidney failure but from the grace of god im alive and have regained 50% of my kidneys. back so now im trying to get healthy but it is so hard to only eat 1500 calories... im also doing water aerobics now im on my 4 th day of that i do two classes total of 90 min of work out.. i love it.. but hope i can ear some tricks to stay full and stop my cravings in my head.. have a great day and please no bad comments i need encouragement