Hi and welcome.
Partner visas are one of the easier ones to apply for and it shouldn't be too hard to do. If you do get stuck you can always use an agent then or just have the application checked prior to submitting.
I’m new here and hope you can help me :) I am looking to apply for a partner visa for my husband. I know he is eligible and we live in the UK currently, I am a citizen and our two small children are citizens by descent. I am considering applying for it ourselves rather than using an agent. Any experience either way? Is it too much of a risk not to use an agent?