Hello,

Better not to be absent in 2020. whatever you work you have just delay it or keep it away for that time. it just one month time to complete all your subjects. if gap is less then it will get completed in 2 weeks. why to waste your one year completely.

don't do that for which you will regret later that you shouldn't have done that. if there are any case which is unavoidable then you may stay absent and later give the improvement exam for all the subjects next year.

Still don't stay absent. try to do whatever you can to appear your 12th exam in any way.

Hope it helps!