ANSWER:

What they say is absolutely baseless and fabricated. Such imbeciles should focus on praying themselves as those who do not pray at all are outside of the fold of Islam.

Start praying tahajjud but begin by little, like 2 rakahs every night so that you don’t get bored or tired after a few nights. 

Be consistent in praying even if it’s just 2 rakahs because Allah loves a worship that is consistent regardless of how small it is.

I’m 20 years old. I pray 5 times daily and In sha Allah I’m going to pray tahajjud also. So my question is.. in my culture people do not pray and they tell me do not be extremist, they tell that if you’ll start praying so much, some jinn would like your so much ibadah and maybe he could trap you or come inside you. So that’s why I’m a little scared to pray tahajjud thinking about this jinn thing.