How to stop nightfall?

Am a 21 yr old boy...i hav been mastrubating from past 7-8 yrs.....i did not realised the effects thn?? i hav got many problm because of this...i m not energetic fr most of ymy day,i feel sleepy ,my eyes white part turns into yellow,hav develop short memory due to this..i m realy upset with my life...plz suggest nd dont hav guts to go 2 ologist fr nw,,,sinc m nt earning