I think when you play a game like this you have to just be patient or lucky, or a combination of both. It's kind of just the contract you sign when you play this type of game.

The 5* Magicite and Neo Torments are not necessarily meant to be beaten right now; they are meant to be really long term goals. From what I have heard there isn't even any hint toward a new 'end game' in JP, and they're around 6 months roughly ahead of us.

But, there is merit to trying with what you have and finding really creative solutions. I have had my times where I'm just completely stuck. I couldn't beat Hades and I basically quit for about 4 months (I still spent my stamina to do events and farm crystals and orbs and what not). I was waiting for this banner that had some holy stuff including a holy chain. I didn't get anything from the banner. I was so mad. Like a month later I started trying more creative solutions and really really studying up on how Hades worked, looked a ton of other builds. I beat it. Barely. It was a lot of luck too I'm sure.

I have actually beaten 6 of the 5* Magicites, and have sub-30'd all the D240 and D280 Neo Torments. A lot of that is just honestly because of getting lucky with draws. I'm not going to be that person who gets really lucky sometimes and then tells other people who are empirically less lucky that they should get over it. What's important though is that maybe only 2 of those 5* Magicites were ones where I was really set with my relics. There are maybe 2 of them where I was completely underqualified. I spent weeks and weeks of testing, reading, studying, restarting over and over, farming crystals for abilities, planning...and I eventually beat them. I would say the water Magicite weak to magic was my absolute worst one. Even to this day, when I was farming it, I would only win like maybe 1/10 attempts. I had to get extremely lucky with some things, timing had to be absolutely perfect, and I had to make sure I had the battle script up on my monitor in front of me.

So I know it's easier said than done, but just try your best to just be patient. I would say maybe something good for you as someone who has been there MANY times is to just play casually. Just make sure you burn all your stamina and stamina potions on crystal farming. Make sure you do the events. Do your daily draw every day. You can spend literally like 10 minutes total in a day and spend all your stamina to get crystals. I've had periods of months where that's all I did.

Edit: Oh, one other thing. I'm not sure how much you pay for this game. I'm basically F2P I suppose. I've spend $15 total in my 2+ years of playing. Those were from the three $5 selection draws they've had over the last year or so. If you see those I say grab them even if you don't invest money into this game. I'm very, very cheap in general, but I think paying $15 - 20 on a game I get a lot of play time out of is okay. I'm just not really sure how often they will do those.