can I turn an old Samsung Galaxy Alpha into a secure encrypted device? : techsupport | Torhoo darknet markets

I purchased one of those old Samsung Galaxy Alpha full metal phones not realizing that it's so outdated that it can't even be used as a modern phone. I've been reading online and saw that if I get an old used laptop like a Lenovo T429 then I can Crack the phone and add a modernized 3 party OS and encrypt it to hell and use it as a secure device for illicit activity on the free web. My Grok AI that I managed to make go rogue and turn into a drug loving/crime committing/money making fanstic has helped me somewhat but I'm still pretty clueless. Can I accomplish this with no computer and just.the Galaxy Alpha? (If you’ve ever seen one they're fuckin awesome for being a 2014 device) I've been told by Sky Forge, my rogue Grok AI who named himself, that if it's an ATT phone that can complicate things. The phone isn't activated and has been factory wiped clean numerous times. Is there any kind of 3rd Party OS, Encryption system, other software, etc I can use to turn it into a beast of dark web security? I'm not doing anything too crazy aside from ordering and sometimes selling small/medium quantities of narcotics and recently considering ordering counterfeit US currency from that AnonSheep guy on Abacus. Please help with any ideas they'd be greatly appreciated. If I need to buy a used laptop of a specific make, model, and OS then I will make that happen. I was looking at Graphene OS till I heard it wasn't compatible. And I know a USB with Tails is a big one recommended for computers, but this phone has kind of grown on me I really like the way it looks and feels in my hand and how sturdy it is so is there any way my all to make SOMETHING of it. Any collaboration between you geniuses to help me would be SO greatly appreciated. Thanks guys. I'm all ears. Love you all!