IB subjects

On the languages side of things, Spanish a.b. will definitely be easier than German SL. This is because it is an ab initio class, therefore is targeted at students who have no prior knowledge of the language - it'll be much easier than Standard Level language, ergo you'll have a higher chance of getting a 7 for languages if you went w Spanish ab.

To do medicine, HL chemistry and biology are more than enough. If you really do enjoy physics SL, then I'd say go with it but prepare yourself for a shedload of work in Y13. But tbh, your 3 HLs are already perfectly more than enough to get into medical school. I recommend taking the easier route ie SL pyschology & Spanish ab initio, therefore you're likely to get higher overall IB points. You already have the necessary subjects for medicine, now you should focus on getting the highest possible points. It's a point game, and at the end of the day that's the determining factor of whether you get into university or not. SO i defintely would recommend taking the easier route, and aiming for higher points.

Thank you so much for the advice. My only concern is that I don't think Psychology will actually be easier for me as I am quite bad at writing essays. I don't understand why they say physics is so hard I mean most of the chapters are like IGCSE in more depth and maths won't be a problem. The only thing that concerns me about physics is the experiment. Will I have to do an experiment the second year as well?