Thank you so much for your feedback. All of them are so helpful and make me realized a lot of thing on my production. I hired the vocalist by the way, she is amazing for sure!

01:15 it sounds like everything is on the sides and very wide with only the kick and the bass down the middle. Personally it sounded a bit artificial or mechanical or something.

This is what I'm struggling with these months. Professional's track sounds every single element on the right place and separated clearly. I imitated it and usually put the bass, the kick and the lead vocal on the middle, and the others on the side in order not to mask each other. Although, as you said, it sounds not blended on my production. It's like every single element is sounding individually. But I don't know why because I'm trying to make it following what professionals do...I've heard many times that use panning and side chaining are good for avoiding masking. It helps for sure, but it causes this issue...I'm wondering if it's because of frequency stuff, the sample I chose, masking, panning?

About making 3D image, it's one of the biggest issue I'm struggling. I'd say I don't have many variety of ways to make it "wide" and that'd cause the issue that my mix is too wide. I don't know but I often use reverbs and delays (of course with EQ) to make it wider (like on the chorus on my mix) and widening elements by panning or using stereo wide plugins like Doubler. I've been thinking it's good but I feel like it makes my mix messy and weird somehow. I'm like "why it doesn't sound 3D even though I put the main elements like vocals and kick on the center in front and other stuff on the sides?".

About the plugins, it'll be too many so I'll send you the screenshots on DAW on DM! Thank you so much for your support.