Could I get to Oxford?

I don't think going to the gym or working in a charity shop will increase your chances much actually. The interviewers focus heavily on academia and academic interest

Nah I heard the secret of getting into oxford is to have mad gains! They will ask you your best sets & reps etc.

I heard one guy did 50 pull ups at interview and was accepted on the spot smh

I would like to study Biochemistry at uni and was looking at where would be a good place to apply in the future. There are many good options, but i had never considered Oxford as I didn't think I could make it. However, i feel like i stand a decent chance and need your opinion on whether I have enough to get in and what else i can do.

Gcse: 2a*s 7a's and 2 b's
currently doing as level, but in order to even apply I will need AAA at As so lets assume I achieve this.
Work experience:1 week in a care home, 1 week in a dental practice and 9 months in Oxford charity shop, also at the end of yr 12 we are offered another bout of work experience so i will aim to do a science/lab based placement.

I have done Bronze Dofe and will undertake silver as well
I to the gym around 4 times a week
Have a first aid training
Also, i attend chemistry, medicine and other science based conferences at various uni's in the UK as well.

Let me know what you think!