Need an advice on taking two skill level papers.

I finished Foundations in accounting 3 days ago.
My last paper was F2 with pass mark on 70 marks. It took 5 weeks to prepare for its exam, now I am going to skill level and I don’t want to take F4 thinking it is easy and available any time.

I have time and I am not working but now that I haven’t done skill level before I am afraid doing 2 paper at this session.

I am considering taking F5 and F7 together because I did F2 which is relevant to F5 and F7 which is easiest paper among skill level excluding F4.

Facts:
1. Can get 8 hours per day.
2. Love calculations more than theory.
3. Done F2 recently.
4. Never done Skill level exam before.

Please advise me on this matter thanks.