Blackbird
The Beatles
I know this looks like a big jump in difficulty, but don't worry! It's really quite simple.
First of all, this is a fingerpicking song, so you can set your pick down for now. Notice that bars 1 and 2 alternate between 3/4 time and 4/4 time. They also have a "repeat symbol", indicating they should be played twice before continuing.
You can break this entire song down into 2 picking patterns, and once you know them the rest will fall into place. Bar 1 is in picking pattern one, and bar 2 is in picking pattern 2. The rest of the song will alternate between them.
This means it's a great idea to focus exclusively on the first two bars until they are very comfortable.