Try different areas. Don't stick to one

One thing I've found since being in HMRC is that there is a real motivation for the workforce to reflect the diverse society that we serve. The success profiles often used in recruitment can seem daunting, but actually they allow everyone no matter what kind of previous experience we have, to demonstrate those transferable skills, or behaviours, which can be drawn upon, with the right training, to be successful in a brand new role. So don't let anything make you think you don't have what HMRC need or want, whether that be challenging personal circumstances, health difficulties, or lack of prior experience, the Civil Service is here to support everyone in our society, and so it should be made up of a diverse workforce that can accurately represent everyone.

Find a mentor you are comfortable with. Be prepared to take honest constructive feedback. Create a support network...it's easier than you think.