Can I grow taller at the age of 22 .I m 178cm tall, as genetic point of view my father is 187 cm tall my cousins are all around 184 and 185 cm and there fathers are 178 to 180 cm tall. Please tell me some tips to increase my height up to 6 foot.

Nope that's it, sorry.

There's nothing you can do other than to learn to live with it.

While you may grow a very slight amount, most likely you are done growing. There is nothing you can do.