Ty for your HELP

One more question maybe last but who knows

mint jelly i live in Poland and we dont have this product in our stores, would you be so kind to give me maybe some recipe to this on your own in home ty much appreacieate

Hello i am about to start my adventure with indian cuisine, i am amateur and need some advice from you guys any help i would apprecieate

I have few questions:

1. Is it worth to buy Tikka, Tandori, Masala and other Patak's Paste that are aviable there ?
2. I was thinking about Mustard oil is it safe to use it in the kitchen ? Cause i read that this oil is for external use only ;<
3. Is it optional to use coconut flour instead of coconut block
4. I was broswering through forum and i couldnt find easy/good chicken Tikka Masala Recipe (I will start from something thats easy) would you be so kind to give me any link ?

and there is one guy on youtube i will give you guys link thats making chikken tikka masala takeaway style you think following this recipe will make good masala ?

https://www.youtube.com/watch?v=n1wjyOdNdSw

Thanks for any help