I agree with the others. I often end up in the position you describe and this is for th following facts.
1: I usually have some pals with me, with whom I am communicating via Voice chat. Ergo easy targeting and situational awareness.
2: I am not ashamed to ask my team for cbills, usually I get quite an amount and thus am able to field a good mech very early in game.
3: I try to make the team a working machine be it by asking what is needed on the field, giving orders/suggestions etc.
4: My buddies and I give each other cover, especially vs. Aeros and Bas.
5: Retreat before you die unless you undertake a necessary move that most likely will end in your death.
6: abandon your mech at the right time, then apply fact no. 2
7: Skill is always involved, I know what I am good at (picking Aeros with lbx

) and what I am bad at (ba hunting). If you manage to do your thing and get another player to do his both of you will wind up with a nice K:D ratio.
EDIT: Also look at my sig. It should also tell you what it is all bout. If you play often enough you know how to fight this or that asset effectively, what to avoid and what to exploit.