should i move to amsterdam by myself or follow my mates to austrailia instead

hi my name is dara im 19 and from ireland , and i have a really hard deciscion to make , me and all my friends .. well about 5 of my friends are moving out of ireland for good but my friends are going to austrailia now i want to go too but if i go to oz how long more will it be before i get to visit amsterdam my most favourist place in the world although ive never been there ! im dying to go to amsterdam but is it really a wise decision to go all alone and start a new life for myself without my friends , while they do the same in oz , i mean amsterdam is such a awsome incredible place where anyone would have the time of there lives if they went there with mates , im not so sure ill have a great time all by myself , i cant see me finding a whole lotta new friends to have wild nights out with and chilled out smoking days , i know im only 19 and i have plenty of time to travel and austrailia is an incredible beautiful country it really is ''the life'' out there but i really do not know what to do , is there anybody on this forum who was in the same position as myself ?? any replys would br greatly appreciated .