Breaking Bolts free

Trying to get the bolts out of my rear shocks, specifically bottom bolts. I have a lowering link I’d like to install.

However I can’t break the t50 by hand. Everything says hit that mf with a hammer or give it some grease. I’m afraid of shearing the head on the torx bolt I guess. I can tell the guy before me did it w the wrong size a 45, not a 50 so it’s kinda soft and chewed! So i’m weak and scared of stripping the head, no joke.

If anyone has a good thought let me know! Seems I may have to go buy a longer ratchet for leverage, but I thought I’d check it out first!