Advice please

Hello all,

I started my career at the age of 26.i had my back logs hence started late .my total yoe is 6 years.in which 5 yoe in service desk.i have not tried coding after my College and have backlogs in maths .I want to move out of the service desk.i am interested in infrastructure services.my age is 31 .I can learn quickly and adopt quickly to job.i can't make up my mind to sit study and move on . currently I offer a new role for ad and sccm support.my current package is 45000 take home at current job market what should I do.