Do whatever you want, I'm going 5 and me know I will be fine once I get my bearings and balance when I go back, If you wanna to 3 do there, wanna do 4, do four...wanna do four from AS to A2 go ahead, only you know what you're capable of and what you can and can not do tbh. If you can manage it them cool....
the only problem is to pick carefully, if you pick one or two you don't like you can become demotivated to not do them and that will affect you negatively
Other than that, you should be fine you can do it I believe in you