When learning a language, it’s natural to compare your own progress and abilities with that of others. There’ll usually be other learners who know more than you, at least about some aspects of a language, or who speak and/or write with more fluency and confidence than you. You might also meet people who have been studying a language for a shorter time than you but who have achieved a higher level. This can be discouraging and frustrating, however we learn things at different rates, so such comparisons are not particularly helpful, unless you’re doing some research into second language acquisition (SLA).
Whenever I meet someone who is studying or has studied any of the foreign languages I know, I usually compare their level with my own. If they have a lower level, I feel that I’m doing ok, but if they have a higher level, I feel a bit jealous and resolve to study more. I also wonder whether I’ll ever achieve their level of fluency.
If you’re studying with someone else, some degree of competition can be a good thing, as you can encourage one another to keep going and to achieve more. Too much pressure is probably doesn’t help though.