Maths from Key Stage 1 to University

I have a Bachelor's degree in mechanical engineering and I am currently working towards my PhD in medical physics. I am a teaching assistant at my university and have 1 year of experience in helping students tackle challenging maths problems.
Idea for the sessions: propose a topic a week before the session that you wish to learn about or need help with and I can hopefully go through this with you in detail until you are 100% happy and confident with the topic.
Happy to run sessions on the weekends.