BTW if you end up with an impacted ear drum or you just want to deeply clean your ears: peroxide. Just tilt your head sideways and pour it in. Let it sit for a while and it will break up enough wax to dislodge it. You might find that you can hear much better after.
Not necessarily. Just make sure the best projects are pinned or listed on your resume. Nobody has time to crawl through your entire GitHub anyway.