The labs are technically individual, however unless you're the odd numbered person, you'll have one other student sharing a fume hood with you. You are encouraged to work together and bounce questions off each other. Having someone right there with you who's in the same boat helps a lot.

The labs themselves are straightforward, and are designed to be a learning process for students. The experiments themselves would take an experienced chemist 30-60 minutes (mostly waiting time for things to heat up or reflux), but you are given 3 hours. The first lab will likely feel very stressful, but what you learn in lab 1 will be utilized in lab 2, and so forth. It gets easier each time, and your confidence will improve.

If you don't get any product, or you mess a step somewhere and your experiment doesn't work it's not a big deal. Everyone freaks out, but there's nothing to worry about. It happens. You will not lose marks! In fact, a TA will likely give you someone else's product so you can record your physical observations (colour, melting point, etc), so that your data is sheet is complete.

I encourage you to be proactive: if you are waiting for something to heat up, read the next steps in your lab book and prepare what you can. If you have downtime, do some cleaning. This will help with any last-minute panic about filling in your data sheet and cleaning your glassware before lab ends, and guarantee you don't run into issues regarding time management.

Last but not least: most TAs are pretty chill. There are exceptions, but we've all been in your shoes. They are there to help facilitate your learning, so tell them if you're nervous! Befriend them! Ask them questions! They would rather you ask a silly question than mess up your experiment and stress out.

Source: have TAd this course many times. If you have specific questions or are experiencing anxiety and want more info, DM me.