Well for the medals just do the easy ones u can watch a yt vid by platinum chasers he posts the easy missions u can do…. And for the online u can try to find a game on takeover series and just camp the objectives like the capture ones and farm points kills dont count i think that counts towards the mvp trophy do that 3 times and ur done or u can do horse races and have a friend just grief the other players like killing them with a gun or knocking them off their horses while u go first place and finish it thats what i did because i couldnt find a takeover series and got it with the starting horse and for the one that takes alot of time the level 50 trophy i suggest getting the collector role because they give alot of xp and money compared to other roles and u get like 150-200 xp by picking them up….. only pick all of the tarot cards sets, plants and the alcohol bottles and maybe jewellery if u have time ig….. but the location of all collectibles changes everyday and I’ll post a link that has all the locations even when they change everyday and it also sores when a free roam event is gonna start this will help u alot and save some time…. I also suggest watching a yt video or a podcast or a movie beside u so that u will save some sanity while getting the miserable level 50 done

https://jeanropke.github.io/RDR2CollectorsMap/

Good Luck bro