Yes 100%. The people you choose to surround yourself with are so important. If you surround yourself with negative people then you'll become a negative person as well. So, if you choose to surround yourself with good, positive, successful people then no doubt you'll start to take after them.
The people in your daily life help determine who you are and how you live. That's why, just like you said it's best to surround yourself with people who will help you move forward in life.