Need some help with losing weight

PD0G

So I used to sit around 40kg went up to 115kg no in 78.8kg I'm really wanting to at least be 54kg I felt the best about myself and had a lot of energy and was positive about my body can anyone help me on how to get back down I have been trying for 2 years now but is there any other way
Ps. I have been in hospital for hypoglycemia aka low blood sugar levels was in for 2 weeks