Hi friend, i will be getting married next month, let me share some of my experience.
I'm also 27 this year.
Before this as a normal income guy i knew that marriage is not easy but , it is much more tougher than expected. I'm a chinese. So before even talking of marriage we need to prepare 3 things, house, car and cash for wedding.
I invest in 1 2nd hand small house when i was 22( just graduated) and i sold it then i bought a new bigger house. Its was all good.
Until I start paying the loan for car and new house which decrease my savings, i face so much stress, house renovation cost me so much that i even need to borrow from my family.
We talk bout wedding dinner, u want live band..add money..you want flowers..add money..that add..this add...and the best thing they will tell you is...its once in a life time, dont you want your bride to have a beautiful wedding? ok...they win....

So what i advice is please please be prepared financially, even if you dont have, make sure you have some alternative way for emergency. Marriage is not easy for our generation. Once you step into a marriage life, you need to take big responsibilities for your wife and kids future because you are the man of the family.

Congrats to you and may you have a great marriage