Congratulations on your win…but I completely understand and sympathise with your anxiety. All of a sudden you have so many options, your life could change a lot and it must feel very overwhelming. Then there is your ex to think about. It’s really a lot to deal with.
My best advice is 2 things. First, do not make any decisions right now, just take as much time as you need to let it all sink in. Park the money in a high interest savings account.
Secondly, I would very strongly recommend that you see an Independent Financial Advisor. They will take a really detailed look at your position and your aims and be able to consider things like tax, planning for your child’s future, Inheritance tax planning, pensions, safeguarding your win from your ex (or refer you to someone else who can advise). They would look at a number of different scenarios including investing some of the money. If you bought a small house and invested most or all of the rest, you could see the rest of your £million grow gradually and become a wonderful cushion for the rest of you and your child’s lives.
You would have to pay for the advice but it would be a false economy not to get professional advice for a lump sum of this size. It’s worth speaking to a number of IFAs until you find someone who seems to ‘get’ you. I met with 5 or 6 before I settled on a company I was happy with, and this was for everyday investing and a pension, not a big win.
By all means see the lottery person to start with, but I would not be following their advice unless you are quite sure they are an Independent Financial Advisor AND that you like them.
All the best to you @HopefulMummy90 . It’s lovely to hear of someone who wasn’t born into money, getting a break.