No one (including you) ever dreams of being an average and not being great. You can easily lay down and see yourself accomplishing big things, being a great person and celebrating success with your friends and family.
But all this imagination would make no sense if you don’t look at the situation practically and admit that achieving this isn’t a matter of a few days. You’ll have to work hard for months or even years to reach that position. But this should get into your mind positively.
Rather than thinking that it would take a lot of time so you shouldn’t do it, you should think that no matter if it will take so much time, you can do it, and you will do it! This is the toughest part where a lot of people take a step back and don’t even start.
But those who dare to start, end up being great. Great things don’t come to you by your bed on their own. You need to wake up and chase them. If you dare to start, you’ll definitely finish!