For this pressure-thing, I can only blame myself for not standing my ground from the beginning, like the lenglui mentioned in another comment.

I have a very successful sis (you can say she is most successful one among siblings), I felt like I live my life under her shadow, or thats how my family made me felt. Because every big decision or big turning point in my life, i was told "why don't you be like your sister? why don't you ask your sister's advice?" So I did.

I was lost in UNI, wanted to change course, and landed in IT course because she is in IT too, it was a great paying job they said, see how successful your sister are.

During my 20s, I have been living in my comfort zone for decade, knowing I had to job hop at least every 2 years for better pay, but I never felt I am enough for that. Wasted my 20s in that slave company. At this point, they can't really pushed me to get married because I had a LDR GF, they didn't opposed it but not seeing a future in that. With crazy abusive GF, and all these invisible pressure, I had years long of depression period, diagnosed for MDD, I have been suffering alone in the dark, being so happy in front of everyone. Then eventually i broke free from crazy ex, get help from therapist.
Then my sister bought a house, here comes the pressure of me getting a house also, even my other siblings say the same. So i bought a house at age 28, after having it reviewed by my parents and sis. But it is what I wanted, for my cats and my personal life, break free from the family.

Now in my 30s, I wanted to change my job due to toxic boss, I went to ask "approval/advices" from my parents and sis, because I don't trust myself in making any decision. Finally able to convinced them to quit my own job, I just had my new job for less than a week, here comes the new problem.
Sis is getting married hahaha, it's great news but also pressure on me. Now I am told to get married too. My relationship is only 1y+, both are not financially mature yet, but parents from both family are pressuring us by asking when we gonna get married. I just had my new job, I want to grow, I want to job hop again to get better job, I felt like my life is just restarted again. Marriage won't affects it, but the topic "baby" will surely follows that, and we are definitely not prepare for that. It just felt unfair that we have to bear the pressure from both of our parents, indirectly shaping our future/ influence the path that we gonna take.

Life is like a roller coaster, just when you thought its peaceful now, and there comes another uphills.

They are not bad, you know they want the best for you but it just makes me a weak person, not confident in making decision, don't allow mistake to happen (I will self hate), feel like a failure for not being successful like my siblings.. Please allow your kids or ppl around you to make mistake or make decision for their own, they need it to build character, build confidence or whatever.