What should I play?

I am looking for a solid defense in response to white's e4.I have played sicilian,scandinavian,french,carokann,and many others but do not know which one suits me best.Any suggestions?

Middlegame Planning:

1. Expand your position:
2. Gain more space.
3. Improve the position of your pieces.
4. Decide on what side of the board to play.
5. Queenside: a-c files.
6. Center: d-e files.
7. Kingside: f-h files.

            Compare, space, material, and weakness(es)

            Play where you have the advantage.

3. DO NOT HURRY. Regroup your pieces, and be patient.

thanks any specific opening to play?

Openings are a personal choice.  That would like me asking you what vegetables should i eat?

Who are some of your favorite players?

What openings do they play?

Whatever opening you decide on, do the following:

Gain an understanding of "why" the pieces and pawns go where they do. 

Do those openings lead to a middlegames you're comfortable with?

ST GEORGE DEFENCE 1. e4 a6 2. d4 b5!

Thanks,I will try