A few important stuffs to know:
1. Don't skip episode 50. Its one of the better episodes in early Gintama
2. You are a month away from Gintama's first serious arc. Some will start commenting to ask you to watch the movie version instead of episodes. MOVIE has better animation but was made 3 years later for those who have seen it, with a few Spoiler content of future episodes. So better watch the anime version for now. Movie can be watched later or you can just search "Gintama Benizakura" on Youtube to watch 5 minute better animation fight scene.