I know the rut you are in as that is exactly how I felt before hitting 30 few years back.
I think this is a natural human phenomenon and only those who are meant to grow and keep developing experience it.
To put it simply - you outgrew your current life situation and now is time for an upgrade.
Are you experienced enough in your field to consider starting a business of your own? Maybe take up a management course and aim for a leadership position? Maybe look for another filed or industry where your skills could be applied?
You need to do some self-reflection and see where your intuition will guide you, spend some time in nature, alone, so you can hear what it has to say.
With women, you need to put yourself out there, they won't come to you. Just keep in mind if you get a woman in a bar, you will end up with a woman that goes to bars.
Will life get better? Create a 10 year long term plan, struggle and work towards it, adapt and adjust as you go - life will get better 100%.
Give in and life will get worse. To live is to struggle.
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