Has God ever answered your prayers?

Yes, continually.

"The earnest prayer of a righteous person has great power and produces wonderful results." -James 5:16

Yesssssss

He did many times but sometimes I do fail in prayer if I'm not trying :/

If I believe in God???
Yes I do ...I will give you a chance to witness for our Lord. Your post is confusing on whether you believe.

Praying to God is not same like eating chili which you feel hot as soon as you bite the chili

If you say enough prayers then statistically, some of them will be "answered" positively...

Not always when I want Him too, but He knows the right time.

Many many times.

He has

Indeed

No. That, along with some particularly awful experiences in my personal life, is why I stopped believing.

No, so I lost faith after being riddled with so many health problems from birth and onwards

I'm in a great marriage with a wonderful woman...yes a prayer has definitely been answered.

Yes

all the time