Can I force someone to fall in love with me psychologically?

No. You are likely to turn someone completely against you if you use force. Force is used in cases of domestic abuse, not in loving relationships. If someone is not attracted to you, even if you offer untold riches and a life of luxury, they will not love you better, possibly even less.

It is your personality and character that should attract a lover and particularly a lasting relationship, as well as your kindness, readiness to see the other's point of view and attentiveness to their interests and needs. The use of force against another person, even psychological force, is deeply unsettling and even repellent to others.

The internet is full of advice to make someone fall in love with you. Several suggestions include make a good first impression, make eye contact, get to know each other, keep connections open but don’t be available all of the time, be interested in their interests, just be yourself, create trust, and more. However, I have serious doubts that these, and other suggestions you can find online, will actually make someone fall in love with you.

These are all good suggestions for improving your relationship but will they lead to love? Maybe. Call me old fashion, but I believe first you have to be attracted to someone and if they are also attracted to you, you can more easily all in love.