tournament started. now what?

When a tournament starts, you should get a message from chess.com telling you that it has started. You will be able to find you game in your daily list of games. I think that this is your game https://www.chess.com/daily/game/221242534 but as you are playing Black you will have to wait until your opponent makes their first move.

In some tournaments you play both games one at a time, in others you play simultaneously. It depends on how the tournament director set up the tournament.

It's a setting on the tournament, you either play all your games at the same time or just one of each pair. If the latter once you finish you game the second will automatically start.

Your game has started, it's just your opponents turn to move. They haven't moved yet. Once their clock runs out they will lose the game, and your second with them will start. You will be white in that second game. Make your move and wait for them to time out again Welcome to Roind 2.
Well, my opponent finally made a move with a few minutes left on his clock, and I can see that it will be easy to keep up with my games. However, it still seems like a big inconvenience trying to check in on the tournament to see how it’s going. Can someone please tell me the steps you would take to look in on one of your tournaments? Right now, I can only find my current tournament by clicking the link KiwiTai provided above. Thanks!

On this page you can sign up for tournaments and there is a section towards the bottom that shows your current tournaments
https://www.chess.com/tournaments

Play > Tournaments
Also on your home screen you should be able to see the status of all your daily games, including your tournament games.
There are 4 players in my group. It seems we are all playing each other. The scoreboard has our names going down the left side, and across the top are the numbers 1, 2, 3, 4, then a medal podium icon and a scale icon.
Under the numbers, there are various numbers and symbols. Some boxes have two tiny chessboards, some have a 1 or a 0 and a chessboard, some have an X, some have two 1s, etc. Under the medal podium and the scale, there are just numbers. I assume these are current positions or something, but I don’t know how they’re determined or what they tell me at this moment. One has a 5 in it.(?)
Thank you!

The last two columns are that players score, and their tie break points. The 1 and 0 are the game results for that particular match up.
Here’s my current line in one of the tournaments I’m in:
In my first column, there’s a 1 on top and a blue/white chessboard below it. In my second column, there’s an X only. In my third column, there’s a 1 on top and another 1 below it. In my 4th column, there’s a blue/white chessboard on top and a gray/white chessboard below it. In the medal podium column, there’s a 3. And in the scale column, there’s a 6.
Specifically, what is the significance of the numbers and symbols, their locations within the boxes, their colors, etc?
Thanks again,
Frank

So it's a matrix. Your first column reflects your score against whichever player is in the first row The second column is your score against the person in the second row. It sounds like you are actually in the second row, the X reflects that combination would be you playing yourself, so the X shows there are no games needed. The two boards will link to the games in question. A 1 means that game is over and you won. A 0 means you lost. A blue boards means the game is still in progress. A grey board means that game is not yet started. It'll start automatically when you finish the first game against that same opponent. There are two boards in each section ad you play each opponent twice.

The medal column is that players score, 1 for a win 0 for a loss 0.5 for a draw. The scale is that person's tie break score. That's only used if two players get the same score. Its calculated by adding up the score of all players you have won against, and half the score of all players you drew against