music playlists

Hope this is right place for my post. It’s about music, specifically music playlists. I’m sure there must be an easier method in Kodi to create a music playlist and also make it not disappear. i just haven’t been able to figure it out. The following is the only method for me to make a playlist. I have to import my PC music library and I have to do it each time i start up kodi. The imported music list never stays in Kodi each time i log off. That’s the first issue. Once imported the list becomes the “Big List” or as Kodi names it. So far the only way I can make a playlist is by clicking on one song at a time and then it’s added to “current playlist”. That’s my second issue, very tedious to pick one song at a time. Please note I said “my issue” and not “Kodi’s Issue”, putting the blame on myself , not a malfunction of Kodi. My last issue (so far) is I can’t save the playlists. I go through the saving process, of naming and clicking save. I never get error msgs that a list didn’t save, but sometimes they don’t and when they do it’s only for the duration of that Kodi log on session. Any help would be greatly appreciated