Hi, Wannabe! I think most of us can relate to not wanting to hold someone else back while riding. No matter how fast you ride, there's always someone faster.
It sounds like you don't want to ride alone because you're worried about bike breakdowns not because you are afraid to be oooout there alone. I guess the best thing to do would be to learn enough about the bike that you feel you could take care of problems that might possibly occur. The most common problem is definitely flat tires. If you can change a flat, you can go for a ride alone. If you don't know how to do that yet, you can learn. It's not difficult. It just seems like it as first.
Have someone show you how to do it, and then practice at home until you are SURE you can do it on your own, front OR rear tire. Other than that, keep your bike in good condition. Make sure its tuned up and checked by a competent mechanic. Bikes are very reliable with good upkeep! Lube your chain regularly, keep enough air in the tires. Believe in your own ability to handle things!
Do you have a cellphone you can carry when out alone? It is a wonderful safely back-up, just on the rare chance that something happens and you can't ride home.
Choose a route that never takes you too far from home. You can always do repeat loops. Better than not riding at all.
This I know - the more you ride alone, the more your confidence will build. And not just on the bike but in all areas of life. Biking is so very empowering.
Enjoy!
annie
Time is a companion that goes with us on a journey. It reminds us to cherish each moment, because it will never come again. What we leave behind is not as important as how we have lived." Captain Jean Luc Picard