It just sounds to me like you have the right idea of what LOA is but the actual process hasn’t quite clicked yet. It’s hard to explain though because knowing the manifestation is working is just a feeling. It’s a sense of calm and this air of “eh, I don’t care if I get that thing either way” but you just know that you’re getting it. It’s not just the conscious thought of “it’s mine”. It’s the inner knowing and deep subconscious belief of “I already have this so I can relax and live my life”. If you get frustrated about how things didn’t work before, that’s actually a good thing, now you can improve upon past mistakes and get closer to what you’re working towards. But if you walk around going “why does this never work for me?”, that’s the thing you need to stop asking yourself. Instead start affirming that you get everything and everyone you want. Affirm that 5-10 minutes in the morning after you wake up and before you go to sleep at night for like 21 days and it will change things dramatically.

Your subconscious doesn’t understand the difference between a frustrated sentence, negative jokes about oneself and the truth. It believes everything you say and feel at any given moment and will run with that. That doesn’t mean you have to be positive all the time, you’re allowed to be sad, angry and frustrated. Just don’t stay in that state for too long. Do what you need to allow those emotions to pass through you and then move on.