1. If you have the plan of "trading" ...
So, you will actively buy and sell stocks (say, at least once a week, possibly daily) to profit.
... totally forget it.
This is not even worth discussing. Forget it.
2. If you have the idea of "picking stocks" ...
So you have the idea that you will sit there, decide on stocks you should buy. You buy them. Over the course of (say) some months or a year or two, in your plan, the stocks in questions will increase greatly in price. From time to time you will sell some of those, and buy different ones depending on your thoughts on stocks.
... you do not have enough to do this safely. Forget it.
3. If you "believe in" a company as a long term "bet" ...
We all know the story .. "if you had invested in Apple or Netscape in year X, you would now have four Bugattis..".
... yes, you absolutely have enough money to do that. More than enough. Awesome.
However, it is extremely important to remember that in situation three, there are two outcomes:
• You get incredibly rich. You'll, literally, fly on private jets, etc.
• You have absolutely nothing. That means £0. (Not like "a few pounds" .. but specifically "zero".)
It all comes down to whether you can pick the next Apple, Netflix etc in the early days.
4. Real estate investment
i. You absolutely have enough
ii. Overwhelming fact, real estate is the only vehicle on which civilian investors can achieve high leverage, in the current historical milieu. This simply swamps all other considerations, other thoughts about investment vehicles, etc.
iii. In the long term (decades) it is exceedingly unlikely you will lose money
iv. In the long term (decades) it is exceedingly likely you will make a good amount of money
I, for example, before I entered my "old and drunk" phase was lucky enough to make considerable amounts of money "investing" as most people think of that word, item 2 above. (So, something like "buy a million of gold or APPL and sell it a year or two later for two million! Wow! Investing! Gee Whiz!")
However, carefully note the word lucky in the previous paragraph.