im only 19 and currently pregnant with my 3rd baby, already covered in stretchmarks from my previous 2 babies and my boobs look like they belong to a 90 year old

is there any way i can get a boob uplift on nhs and also laser treatment to get rid of stretch marks? i suffer really bad depression and this is also part of the cause as i have no self esteem or confidence. i would like to stay the same size tho (36f) but at the min all it is, is baggy skin, would just like them to be round and firm like a normal 19year old would have. what does everyone think? possible?