To be "worthy" of love (a misleading phrase) one must love themselves first. People can sense when you love yourself enough. It radiates as confidence, as authenticity.
And when you meet someone and find a connection, you will be surprised how autonomic the response becomes: you will not "find" the energy to have a crush or pursue it, it will come from within like groundwater coming up through the ground. It is magical, and terrifying.
The risk, then, is having those feelings or creating that connection in your head and heart for the wrong person. That's trial and error, experience, judgement and wisdom. Things you only find after going through it. Many times if fate has been unkind or if you haven't learned the lessons well enough. It's a risk that you have to take.
That isn't to say that some people aren't attracted to shyness or vulnerability. Some are. And those relationships might even work.
This isn't also to say that self-love and confidence are locked in once you find them. They come, and they go, with life experiences.
The problem for hopeless romantics is that they've idealized love. And they go looking for that feeling, that idealization they've spent their lives reading about, fantasizing about and being fed carefully curated media about. And they're quick to be disappointed when they find out that real life doesn't work like that. People don't work like that. Relationships don't work like that.
Be prepared to be alone for the rest of your life. Learn to be ok being alone for the rest of your life. When that is true, then....you're finally ready for a relationship. Everything else is just a desperate search for a construct you yourself have created, and which you will likely not find out there the way you imagined it. You basically have to unlearn being a hopeless romantic while you look for/wait for a partner. Be a hopeless romantic once you've actually gotten into a relationship, sure. But being a hopeless romantic while looking for a relationship is a surefire way to get disappointed by reality on a regular basis. Some people get very lucky to find something that really works early on or easily. But most people have to do a lot of hard work and get exposed to what they don't want many times before they zero in on what is real and works for them.
Per the other thread where we're talking about stuff like this, is where my attitude has settled over the last few years. Once you've seen enough triviality, you start learning to dismiss it quickly instead of over-investing in the wrong thing.
Because again, hopeless romantics feel that the ONLY thing in life they're missing is love to make them feel fulfilled. And that's a trap they will walk into, time and again, until they realize that fulfillment starts before you ever even connect with someone.
Put it this way: the average person isn't attracted to someone whose happiness depends on them. They are attracted to someone who already enjoys their life and likes themselves. Desperation isn't attractive or appealing to good relationships (it is to abusive ones) whether it's people seeking each other, or people seeking a thing (like marriage, family, children, getting established, travel and adventure, etc...)