Is My Helmet Still Safe to Wear

Hi, I just recently bought a FOX V4 carbon helmet, love the helmet and it's the most comfortable helmet I've ever had, I was just wondering if my helmet is safe to wear still, I''ve had 2 very hard crashes one landing on top of my head over the bars breaking my collarbone the other was was a whiplash head slap to the side of the helmet, it's got very deep scratches all over the helmet and in the side of the helmet i'm just worried it's it the carbon shell getting cracked to where I can't see it and that's the part i'm worried about in the event of another crash and I don' know if its's still safe to wear, I don't wanna ride in it risking another crash if it isn't safe, i don't think it's done anything to the inner foam, but i'm just worred that it's had 2 hard crashes both landing strait to my head, any help is very much appreciated hope this isn't a dumb question haha, just can't risk safety it's the most important part to me when i ride thanx.