The giant defender is hoping to celebrate extending his contract at Rovers until 2014 by ending their 10-match losing away streak at Bolton tomorrow.
Samba told the Lancashire Telegraph: "I can still get better, of course I can. I am only 25 and you see players aged 32 still getting better. Until the end of my career I don't know how good I can get.
"I am happy the contract has been signed and I can concentrate on playing again. It has been long discussions but both sides are happy and we will continue to work together.
"It is nice to feel an important member of the squad but I will keep playing my game and not really think about it. I have to continue playing well and prove that I am important.
"Who knows if I will finish my career here. Every player has dreams of big teams, that is not out of mind. I am still ambitious and trying to go the best way I can."