You seem to have been taught something like Benjamin twos.

I think we should do it properly.

2C >= 6 card strong suit and 8-9 playing tricks.

In outside suits A or KQ = 1 trick and K = 1/2 trick

This is forcing and your next bid shows your suit.

The negative response is 2D and shows 0-7 high card points

2D 21+ high card points and forcing to game unless partner gives the

negative response of 2H which shows 0-7 points

If opener rebids a suit it must be >= 5 cards.

2H and 2S show a strongish 6 card suit (H or S) and 6-10 high card points.

Do NOT lie about the points. With 11 bid 1H or 1S.

Responses with a fit (ie two of the suit) (count distribution)

4HS >= 16

3HS 8-13 which is a SIGN OFF

2NT 14-15 which is an enquiry

3HS shows 6-8-

3 another suit shows 8+10 and shows a high card.

3NT shows a solid suit - AKQxxxx or better.

These are all assuming the hand is not balanced.

cheers.