I will tell you the main points, but I highly suggest reading the blog for full info. Hopefully it will be useful!
I do work in the finance industry so am hoping this can help :)
Tip 1: Buy less stuff.
Tip 2: Decide what is worth the money.
Tip 3: Thirdly, calculate all your expenses.
Tip 4: Think about what can you cut down on in terms of food and your shopping.
Tip 5: On days where you go out with friends, do make sure you are not blowing your budget.
Tip 6: Now last, but definitely not least, before you go or even during your holiday don’t be afraid to use comparison sites!
(I can't seem to attach the link? The pop-up disappears before I can click so here it the full article: https://travelblogandseo.com/2018/09/15/top-6-tips-save-money-for-travel/ )