You will hear this phrase over and over during and after your treatments..... Everyone is different and will respond in their own way to things. This is especially true when asking about things like how you will fare thru your treatments. Hopefully you will be one of the lucky ones who sails right thru everything barely noticing the side effects. You sound like you are young which is to your advantage at getting thru this easier.

Most of us were not able to work (or drive) during treatments. A few were able to handle jobs where they were not physical, office type things. But even those who did manage to work usually they had to cut back to only working part time.

As far as school goes, that is another story. Your classes probably require lots of concentration which you may not have when going thru treatments and recovery. There really is such a thing as "chemo brain" which makes it difficult to handle technical or complex thinking. You can read the same paragraph 3 times and not understand what the meaning is when you are going thru everything. Grades will also have a long life of their own and one bad grade can wreck havoc on your GPA. If I had to give you a guess, I would suggest taking off from school for the period of time you are being treated and about 5 or 6 weeks afterwards. Recovery can take a very long time, maybe 2 years for a complete recovery. Most of us were much better after about 6 weeks post treatment.

Hope this was a help. Wishing you all the best with everything!!