TL;DR: I want to go discover myself whilst studying abroad, Mum wants to tag along for a bit. Do I crush her dream by telling her I don’t want her to?

Later this year, I’m [18M] planning to go on study abroad to the UK for about 4 months. My mother [46F] is very excited about this and has suggested we holiday around continental Europe for 2 weeks before I get to the UK. 

Now don’t get me wrong; I love my mum more than anything and our personalities are really compatible and we get along well. However I’m not keen to go on holiday with her. 

Firstly, we just got back from a holiday overseas together (with other family) that was enjoyable but in no way relaxing due to us all liking different ways to travel. 

This trip of studying abroad will be my first time living out of home and I was kind of hoping for it to be a discover-myself kind of trip and I feel spending two weeks straight in close company to my mum will not be a great start to that. 

Also I can only be overseas for a certain amount of time due to medical reasons and the more time I spend with Mum the less I get to myself. 

Here’s a summary of the reasons that I feel bad about not wanting to go:
- Mum is super excited about it and I don’t want to crush this dream
- We are not rich and mum’s more than willing to spend lots of money on the trip
- My Mum had breast cancer last year and I feel like this is a pick-me-up she really wants. 

Mum’s brought it up around my grandma who thankfully said I wouldn’t want to do that, which my mum unfortunately ignored. I’ve tried to hint I’m not super enthusiastic about it but have not explicitly stated I don’t want it do it. 

Should I suck it up and go with her or tell her I don’t want to do it? Before you roast me I know this is the most first-world problem ever but it’s still a dilemma. 

Also if it makes a difference I’m paying for the study abroad with money I’ve worked for myself. 