Hi, congrats on completing your first lesson! I hope it went well. Regarding your question, yes, you have used the present perfect tense correctly because you referred to a past event that may still take place regularly in the present. However, you may also use the simple past tense too if you want. For your second sentence, I would recommend that you use a comma instead of “and” since you listed more than 2 items out. E.g. “I really found it super interesting, fun and exciting.” Hope this helps! ☺️