Guidance

Hi everyone,

From a young age I have been obsessed with money and idea of living my life on my own terms. I joined the navy at 16 and at 17 I stumbled across fire, since then I have been averaging investing about 1.2k per month. I have managed this due to my low living expenses. This is all invested into low fee index funds in a ISA, I also have a LISA for my house savings. I am currently 19 and have been selected for promotion to leading hand where I will earn 43k, from there I’ll be able to save 2k a month. In my position, is there anything I can do in addition? Or anything I am doing wrong? I want to be FIRE as soon as possible only I know this is 15 year minimum game of patience .Guidance or suggestions will be appreciated