You’ve got a weak grip.
Someone told you to just keep deadlifting and your grip will become strong. Someone else said as long as you never use straps you’ll have massive forearms.
The problem is that none of that shit is working.
The answer?
Start training your grip
Spend real time each week training your grip. No, don’t deadlifts to train your grip. Deadlifts are for the posterior chain. Set aside time every week to actually TRAIN YOUR GRIP.
The REAL REASON your grip is WEAK is because you don’t give it the attention it deserves.
Buy a pair of grippers. Not those pieces of junk from the local sporting store. I mean buy real grippers, like the Captain’s of Crush grippers, or even the cheaper version.
These suckers are Serious. How Serious? If you can close a #3 CoC you get official recognition and certification. They provide different levels of resistance and you can progress through them.
Which should you start with? We own the Captain’s of Crush Grippers so I can only speak for their ratings. I recommend if you have a 200lb deadlift start with the 60lb(guide). If you have a 300lb deadlift start with the 80lb(sport). If you have a 400lb deadlift start with the 100lb(trainer). If you have a 500lb deadlift start with the 120lb(0.5).