:salamext:
try wearing looser clothes, gradually wearing looser and looser - it might even be different colours.. and u work your way gradually so that its more baggy. Your friends will accept that insha Allah since they'll know that you are who you are, and that you like it this way.. if you do something for Allah's sake, He will give you something better in return for that sacrifice.
And for those who fear Allah, He (ever) prepares a way out,
And He provides for him from (sources) he never could imagine. And if any one puts his trust in Allah, sufficient is (Allah) for him. For Allah will surely accomplish his purpose: verily, for all things has Allah appointed a due proportion.
[Quran 65:2-3]