Which laptop should I buy (design/traveling)

So, I really don't understand a lot about computers but I've been doing some research.. I need a laptop where I can illustrate, use photoshop a lot and sometimes work with videos. But Im a backpacker, I believe 13 " is enough. My friends recommend something around
500gb memory at least
8 gb ram
I5 or i7
I have around 600-700 British Pounds to spend. I prefer to buy a really nice computer that will last me a few years than to spend money on a cheaper one for a year. If anyone has any insight it would be much appreciated thaanks

For what you are doing, you probably need i5/ i7 quad core instead. But that need to be 15.6" for those within your budget.

If you stick on 13", all the i5/ i7 is dual core.

Also, for what you are doing, you may need to find something with IPS 1920 x 1080.