Hello Harshit,

It is great on your part that you are very much concerned about your future. It is always good to know some third language so it is completely fine that you are learning french.

Apart from this, you can learn some prestigious job ready short term computer courses like digital marketing, java, c++ and many more like these.

Also, you can go for some professional courses like Chartered Accountancy and Company Secretary.

There are variety of options that you can consider and ulitise your three years very productively. It's just based upon your interest area in the respective field.

Hope it helps.

Good Luck!