The only taboo in wearing is probably not to wear too tight clothes. Some chubby girls don't wear tight clothes in order not to show the fat on their thighs. Similarly, thin girls will think that being too thin is also a disadvantage, and it doesn't look dry at all, so don't wear tight clothes all over, it's better to wear wider ones.
For example, if you wear a tight knit sweater on your upper body, revealing a perfect waist, then you can choose wide-leg pants with loose and casual lower body. Wide-leg pants will make your figure look more round visually, and the proportion of upper body and lower body will not be so fragile, adding a little fullness to yourself. The lower body is tight, just like the upper body, creating a visual difference.
If you really don't want to bother matching, choose a dress. You can wear it all year round, and there is no duplicate. My history teacher in high school is like this. She taught me never to wear pants for three years and change all kinds of skirts every day. You can wear it like this if you are lazy. After all, it is easy and beautiful, which is what every girl dreams of. It's no problem to wear high heels for leisure.
In addition, I suggest you wear some boyfriend-style clothes, which are usually generous and can make up for being too thin.