Feeling successful is pretty important. You are right about that. Just make sure your clearly defining what success means for you... Don't let other people tell you what it is... It's your life. You get to decide! That's the best thing about this life... Don't you think? :)
Another thing I wanted to mention here @steem.moon is that it is definitely a cultural thing (and we are all programmed genetically) to believe that finding someone who loves us is "success".
But, in reality, their are so many levels and different types of success. It is wise to be very careful with love because love is like a fire... it can keep you warm at night but it can also burn you.
Healthy love always begins with loving yourself. This is the key to finding someone who really loves who you for who you are.
And another thing! Your value doesn't come from someone else loving you... but rather, your value comes from loving yourself enough to be you.
I hope you understand what I'm trying to say here... Because fundamentally, in my opinion, it's the difference between living a fulfilled and happy life... and not.