No.. It is very tough.. I'd got a rank of arnd 4k last yr. I decided to go for a drop. Everytime I did badly in a mock test, all I could think of was what if i had taken admission this year only. Same after I screwed up my JEE. However confident you are, self-doubt will come as a part of the package deal when taking a drop. But studying will be comparitively easier, your concepts will become crystal clear. But it will still come down to only one day's performance.. JEE.. And anything can happen on that one day. No guarantees.. If you're willing to take that risk, go ahead.. I did. And inspite of everything I just said, if I could go back in time, and change it, I wouldn't...
But yes, remaining motivated is tough..I lost interest for about a month, during december.. But fortunately, you're not short on time when you're taking a drop..