Dear Aspirant,

First of all I suggest you should become optimistic about your life. All of your questions are only asking about disadvantages of every field. Now it is true that there are disadvantages of every field you choose. There is not a single perfect course in which you'll not find one or other disadvantage.

Now about dropping two years is certainly going to be disadvantageous for you if you don't do anything productive in these two years.

If you took two years drop from studies then certainly it will be very difficult for you to co operate with studies after that period.

If you are running short on options, you can do a one year drop and prepare for some exam and try to get good colleges. However, if you fail to do so, then I suggest you not drop but consider other available options.

For science commerce and medical and engineering, these questions are far too unrelated as you are going to drop for two years you'll not be able to get good engineering colleges as you can only give advanced two times which is in your case was 2019/2018.

For medical you have no limit and can prepare for as many times as you want.

I suggest first you introspect yourself and try to figure out what you really want to do rather than focusing on disadvantages of every thing you came across.

Hope this helps.

Thank you.

You won't face any difficulties while getting into a college. If you do well in competitive exams then you'll get a very good college. You may face difficulties in placements because few companies have their policies where they don't accept students having an year gap. But in interviews if you have a proper justification then there will not be any problems. 

All the very best.