Have you ever flown in mountains terrain? Desserts? Winter conditions?
Or let me ask you another question. Would you be able to plan and fly a normal x-country (to the place where you have never been before) - perfectly, 4-5 times in a row? If yes, then you should consider going like that. If not - then you are not experienced enough.
Most likely you will do fine, if you decide to go. But if something unexpected happens... Is "most likely" good enough for you, with your life at stake?