It will mellow considerably.
The astringency you taste will fade away after a few weeks to a nicer, more mellow character.
How severe the taste is going forward is relative to your exposure to American hops. My IIPA I brewed last night had eight separate 1 ounce additions (centennial, cascade, nugget, columbus, amarillo, crystal,) throughout the boil.
I'm also dry hopping with 3 more ounces.
I don't expect it to be drinkable until June.