When I was young, I used to buy fashionable clothes and suits. When I was young, I used to buy fashionable clothes and suits.

"When I was younger" sounds a little better. "When I was young" makes it sound like you were a kid.

AHowever, a tie and a belt, however, once cost me half aof my month'sly salary. However, a tie and a belt once cost me half of my monthly salary.

Syntax issue. Vocabulary is correct though.

Just several months ago, when I cleaned out my wardrobe; conside, figuring I would have few opportunities to be in verywear formal placedress, I threw all the ties into the bin. Just several months ago, when I cleaned out my wardrobe, figuring I would have few opportunities to wear formal dress, I threw all the ties into the bin.

Just severalA few months ago, when I was cleaneding out my wardrobe; considering I would haveI realized I have very few opportunities to be in very formal places, so I threw all the ties to the binout. A few months ago, when I was cleaning out my wardrobe; I realized I have very few opportunities to be in formal places, so I threw all the ties out.

Very understandable, some phrases to consider learning: threw out, cleaning out my wardrobe

Nowadays, nearly all of my clothes are bought online by my wife. Nowadays, nearly all of my clothes are bought online by my wife.

It sounds better to say "My wife buys nearly all my clothes online.“ Active voice instead of passive voice.

She generally selects the most valuable ones for me, and I alsobut I often refuse to buy expensive ones many times. She generally selects the most valuable ones for me, but I often refuse to buy expensive ones.

She generally selects the most valuable pieces that are the best value for monesy for me, and I alsonow refuse to buy expensive ones many timesclothes often. She generally selects the pieces that are the best value for money for me, and I now refuse to buy expensive clothes often.

Another good phrase: best value for money, valuable has a slightly different meaning

It's so comfortable to wear leisure and casual clothes. It's so comfortable to wear casual clothes.