Maybe you should have your thyroid levels checked. Many times, when things we've done in the past to lose weight, don't work, it's because we've developed hypothyroidism.
This happened to me, 4 yrs ago, and I still have to work at getting weight off.
Get tested for TSH, Free T3 and Free T4, to start with.
hi,
r u male or female
what is your wight and height and age
what was your weight a yr ago, 3 yrs ago
IF U really want answers; what have u ate and drank in the last 3 weeks
good luck