Kronas - dependents or not. At 18 I hope none. Thus life insurance is for the benefit of whom. Your parents?
So Pension. But you also still live at home, and pay basic rate tax? So Pension is a fairly inflexible savings scheme. You cannot get at the cash until 55+, and by that point would want to leave it for 10 more years if you could.
What I would recommend is a Cash ISA.
http://www.thisismoney.com/savings_rates/isa.shtml
Congrats, Bexy, must be an easy sell.
You will want this money for a deposit for a house (car) at some point.
This all said, see if your employer makes contributions to a ee pension scheme. Mine is most generous and for my 2.5% contribution adds a further 9%, this is effectvly a 9% payrise, though I don't see it. In this case it is worth checking out.