"The next time someone starts listing all the reasons an idea won't work or can't happen, ask them to give three reasons it can." - Simon Sinek
Whether you think you can or can't, you're right. Remember, words are powerful and what you say (or believe) matters. For your belief will shape your destiny.
A mentor once said:
If you accept someone's opinion, you have to also accept their lifestyle. (Even if that opinion is your own)
Lesson: Only listen to those individuals who are qualified to give you advice. For your life will soon start to look like those from whom you take council.
Who is mentoring and guiding you? Whose advice and belief do you subscribe to? If they have the life you want, keep listening. If not, it's time to change the channel.
You want something different? Do something different.