I see you played the French (1.e4 e6) you cannot play that and then
moan about your pieces being cramped. It was you who cramped them.
At the lower levels forget opening lines. You will never see any of the main
lines you have memorised. You need that for the other end of the market.
Get the basics sorted out, develop, develop develop and beef up the tactics.
Actually the lad was right. Don't play Black.
Imagine you are White and have somehow lost a tempo. Fight for it back.
Play 1...e5 against everything (1.Nf3 Nc6 and then 2...e5)
Flood the board with your minor pieces, castle and attack.
If you have lost a pawn don't worry about it.
It means you have an ½ open file for your Rooks to attack down.
You may lose some but your wins will glorious and uplifting.
Relish in the new you and sac with gay abandon.
Be glad you have Black because that means your opponents blunder
will come one move sooner and you will jump all over it.
Look at Petrov playing Black from 1844 - he will show you.
Development is everything, it's value is worth even more than a Queen.