I would do a rough estimation as to how I would like this ££ to pan out.
e.g in my case:
Move house: nothing mad, but a 3 bed with garden and off road parking in the nicer part of my current area of London. That uses £1m.
Calculate running costs on that for 30 years, including having the heating on more than I do.
Plan a spending budget per year: to include good holidays, going out, clothes.
Create security for Dc. Address any current struggles. Some cash for best friend and sister. (Say £50k each)
Budget for repairs and replacements. 2 or 3 more cars, boilers, new roof over 30 years.
How much you want to spend immediately (in next year) on a house move, for example, how you want to live your life, how much you would like to give to or leave your Dc, a find for care, all will influence how you manage the balance and help make sure you get the best out of available advice.