Does it not matter if a jew takes weed because they don't believe in heaven or hell?

It does

Facts don't care about our mere beliefs. 

The  facts:

Ecc 12:14 For God shall bring every work into judgment, with every secret thing, whether it be good, or whether it be evil.

Mat 13:42 And God shall cast the wicked into a furnace of fire: there shall be wailing and gnashing of teeth.

Mat 13:43 Then shall the righteous shine forth as the sun in the kingdom of their Father. Who hath ears to hear, let him hear.

I took weed once. It was wrapped like tobacco in paper and I took one puff and my migraine which I had suddenly disappeared. It was better than an aspirin! 

But I don't take drugs and can live without weed or cigarettes. I hear if you use too much weed over many years it can have an affect on your brain and make you stupid. Same thing with aspirins, take too many and you destroy your liver. I do believe medical marijuana is ok as long as a doctor prescribes its dosage.

Jewish people still need to believe in Jesus in order to avoid hell, just like all people

We are all sinners.  Nobody can be good enough to avoid hell. The truth is that death leads to immediate heaven or hell, depending only on whether the person believed in Jesus for eternal life, or not.

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The truth is that Jesus loves you and wants to bless your life freely :) Most of all, Jesus wants you with Him forever, and not in hell. The truth is that every belief except one will lead to eternal torment in the lake of fire for every person. Because nothing pays for our sins except the death and blood of Jesus, the sacrifice of Jesus that is already accomplished by Him . Jesus loves you! The truth is that Jesus is God, and Jesus died on the cross to pay for all of our sins in full, and then Jesus resurrected from the dead. Nothing else pays for our sins, not works, not deeds, not religions. So the only way to heaven and to avoid hell, is by believing in Jesus for eternal life (John 6:47), without adding any of your own works (Romans 4:5). Believe in Jesus to take you to heaven, and you will be in heaven, no matter what, guaranteed. That easy, thanks to Jesus! Tell Jesus that you thank Him that you will be with Him in heaven when you die, because you believe in Jesus! It is too late to be saved, after death

And what do you believe in, weirdo ?