Ok so when is the right time to ?

Settle down ? I'm 29 right now and have had a number of BF's I start off by being in love and then it crashes and burns quickly. I get bored and stop trying when I realise there not the one for me. I'm at a crossroads right now and Im really feeling like I should settle down and have a good man and kids , but there is a huge part of me that wants to travel more but im 29 and im thinking if I take more time out that I will be leaving this too late what is ur opinion on this??