Passport in the Correct Gender

Okay so hi, my name's Loretta and I'm a 16-year old transgender woman.  The reason why I've started a GoFundMe campaign is because I don't know what else to do.  Basically, a while ago I got a deed poll to change my name and for quite a while now I've been living as female.  However my passport still reads 'M' and has my birth name on it, as well as a picture of me from when I was 14 (pre-transition, unrecognisable from now).  To renew it is £72.50 (plus the cut GoFundMe takes makes it £80) and as an unemployed student (believe me I've applied for many jobs, but nowhere will take me) with a single mum who has refused to pay for it, I have no idea what to do- especially with a college trip coming up in February and my classmates' tradition of going through everyone's passport photos.  I'm not out as transgender to anyone in my class so I'm panicking at the thought of people seeing my pre-transition passport.  Even if you can only donate a little bit, I would be so grateful!  A little really does do a lot in this case!  Thank you so much for reading x