if you're looking for a key, a click when it comes to manifestation, let me tell you that the only thing that matters is love.
I know this sounds like some sappy useless nonsense, but allow me to clarify. don't you feel like you have spent all your life wanting to be fulfilled? imagining this better version of yourself, and waiting to have this or be that in order to finally feel content? And then you discover LOA and think "Oh! I can have it all"; and so you affirm and visualize and ultimately continue to place your fulfillment in this imaginary future conception of yourself. "when I have my manifestation I will finally be happy" But let me tell you: there will always be more to want.
Now, does that mean you should abandon desire? Try your best to avoid it? No! Not at all! As William Blake said:
He who desires, but acts not, breeds pestilence.
To desire not to desire, to repress your human need to enjoy and be fulfilled, is futile and will poison your Mind.
What I mean is that, perhaps, you need to rethink your framework entirely: not "how can I have it?" and more "how can I be? how can I enjoy NOW?". not How can I get SP to love me, but how can I feel loved now, how can I feel like im loved right. this. instant. And the plain truth here is that you just choose to, I swear.
Close your eyes and fulfill your desires in Imagination, grant yourself the pleasure NOW and assume it to be true. Seek for nothing else and I promise that the world of the Senses will follow. Allow yourself happiness and fulfillment now; not when 3D aligns, not when you have this or that, but now.
Imagine out of LOVE, not Lack. As soon as a desire occurs to you, fulfill it -> that IS the ultimate self concept, to deem yourself worthy of having your desires as soon as they appear, without having to work for it. Love yourself enough to grant yourself the pleasure, Love your inner world enough to drown the fearful thoughts, Love the Inner Man enough to know that he is real and he is you, but also Love the Outer Man because he allows you to experience your desires through the senses.
Just let go and LOVE. Don't fear your current circumstances, but love your desires so much that fear and opposing thoughts dont even stand a chance.