D1 or S2 IAL

Hello,
Aris here, I am interested in studying C.S. or electronics engineering ( I'm not sure yet but smth related to technology) I've already done C1,2,3,4,m1 and s1 and currently doing physics and FP. My question is whether to do D1 or S2, apart from m2 and m3 which I'll do for sure, in order to complete 6 modules in FP ( fp1,fp2,fp3,m2,m3). I didn't really face any trouble in stats, on the contrary they were quite interesting but decision is something I must do sooner or later.. My teacher told me that in D1 it's really hard to achieve a high mark because just a small portion sits this examination so he suggests me to go with stats.. Drop me a line of what you guys think. Thanks a lot