"Hi, i donât know how the game will play at later levels, iâm actualli level 32 with both tanker and healer, but i noticed that the party in this game is useless and leveling in solo is very frustrating and boring."
A: they are certainly not useless, on the contrary for most classes partying is a very good option as it is: mana friendly, decent xp, and its good for keeping ones sanity.
"Apart the forced crappy hub grindfest quest system and linear wow progression (where is the old Ragnarok way to leveling?), field bosses and missions are pretty soloable for high DPS damage classes."
A: This is not RO. - But yeah the fact that you can AFK many bosses and instances is retarded.
"I tried to play as a tanker before and full support healer after, but everytime i ask for party nobody cares and all refuse, everybody train and quest in solo."
A: If I were around your level I would most definately party with you, and believe it or not support classes are a very big deal in instances, pvp and most likely the real endgame.
"As a full support player i have really hard time killing bosses or questing, is a hell in solo without a support party."
A: IF you have a really hard time killing bosses - wouldnât that make the game more fun, since its challenging or maybe youâre not into that sort of stuff?
tl;dr
Play this game abit more, I think you will change your mind about most of the things youâve wrote, and maybe just maybe youâll even find some friends that wish to party with you.