I agree with the others on being a bit wait and see regarding investments. When DH and I retired he did quite a bit of research into what to do with the lump sum, including one (paid) meeting with an IFA. We gave it a LOT of thought. First thing is to make sure you have enough to live on. Second thing is to get as debt free as you can. I agree, if you can and can afford it, put some in your pension. The mortgage issue is a bit more complicated. If you pay it off, you have got an asset and a roof over your head but it might eat too far into your capital and if your mortgage is an offset one, and interest rates are so low it might be better to hang on to the capital. In any case, dont do anything in a hurry.
A good book about investing in funds
Amazon.co.uk User Recommendation