One very successful steemian, @firepower, is a motorcycle enthusiast. He was at the first Steemfest in Amsterdam, coming all the way from India to help organize the event. You might want to follow him and let him know that you are a motorcycle enthusiast from Greece. I am sure that he would be able to give you tips on reaching your goal in steemit!

Here is one of his motorcycle posts:
https://steemit.com/life/@firepower/letstalk-how-did-you-find-your-passion-in-life-this-is-how-i-fell-in-love-with-motorcycling