It's so easy to get caught in worrying and stressing about what everybody else thinks. If you focus on what everyone else thinks too much, you can easily end up with no opinions of your own. No opinions and self beliefs can leave you with a super shaky sense of who you are. Who you are can get lost when you're always focusing on what you think others want from you. One word comes to my mind: Exhausting.
There are still situations when I have to step back and notice that I'm allowing what other people think dictate decisions I'm making about my own life. If I followed the opinions of others at specific "fork in the road" times of my life, it literally is scary to think where I would be right now. I use the word "scary" because I remember during pivotal times making the choice to go with my gut and what felt right to me versus what someone I loved told me to do.
It can be hard to stay true to yourself. That is why it's such a feat and leads to depth and truth in your life when you do. There is a huge reward with being true to yourself that you can't even predict.
Get solid on what you believe and think. This is not for you to be bossy and inflexible, but it is for you to know the foundation that you're coming from so you can make solid decisions about your life. The people who love you will appreciate you for your truth. If they don't, they will either learn to respect your truth or not. Yes, that's hard to deal with at times, but I always find comfort in the thought that "the people who are meant to be in your life will stay." You don't have to try to make them stay, they just will. That's the beauty of natural and real relationships. You don't have to try to control them. That's not the point of fulfilling relationships.
Listen to yourself. You ultimately no what is best for you more than any other person could.