Thnx for the advice everyone, currently im lvl 47 this close to lvl 48 ( ) also i do a lot of pvp but i havent tried the dailies on illum because arent i too underleveled for a lvl 50 planet?
No. It's a touch harder but you can do it with no problems at level 47 - it's exactly what I do with all my characters. To give you an idea, I've just hit 50 on tenth character (altoholic alert!). My plan always involves finishing the class storyline on Corellia just as I hit 47 and then heading straight to Ilum. With an XP boost active you'll get just under 32k XP for each daily at Ilum (more for the heroic) and it'll take less than an hour to do them.
From part way into level 47 to hit 50 took me just two days of dailies on Ilum and one on Belsavis (the latter being more time consuming with lower individual XP rewards). In actual playtime it's only a couple of hours.