1.“今天晚上是我这个星期第二次吃寿司” 2.“我从吃不厌日本菜” 或者“日本菜我从来吃不厌” 3.“我吃了生鱼片、沙拉和味增汤，还喝了绿茶。” Here，we don't use "也" because you didn't mention any concrete dish before this sentence. Secondly, instead of a comma, we use "、" (dùn hào) between words and phrases. If you use "和" as the conjunction, you don't need any punctuation before it. P.S. In order to show you the grammar rules, I keep your sentence as original as you wrote. But usually, we don't say "eat a soup", we prefer to say "drink a soup". So your last sentence could be "我吃了生鱼片和沙拉，还喝了味增汤和绿茶。" I wish you a happy new year and a successful Chinese leaning journey!