The first thing to find out is what your vibrator is designed for. There are many different types of vibrators. Most vibrators are made for clitoral stimulation. Some are made for internal stimulation, typically directed to point G. From there, you should familiarize yourself with the configuration of your vibrator. Almost all vibrators these days have power settings that determine how intense the vibrations are and pattern settings that determine how the vibrators pulse. Refer to the user manual that came with your toy or look it up online. For more tips on your specific toy, you can see if there are reviews online (I really like the Oh Joy Sex Toy and Gay tubes). Try the different options on your hand or forearm, until you begin to feel more comfortable operating the toy.
When it comes to using the toy at this time, it is important to make sure you are in the mood. Vibrators can produce some serious intensity; It can actually be awkward if you try to use one before turning it on. Do what you want to get in the mood: watch porn, read erotic, fantasize, touch your body. Once you feel excited about the next step, turn on the vibrator. But don’t get between your legs yet! Continue to make fun of yourself using the vibrator on your stomach, breasts, and thighs.
I always recommend lubricant, and using a vibrator is no exception. The lubricant can make the vibrator experience much more pleasant; You can help the toy slide against your skin instead of catching or throwing it away. If you are penetrating with the toy, you will definitely want to use a lubricant. You mentioned that penetrating your vibrator causes you some pain, so I think this could be great advice for you. I really like the Toy Love lubricant, made by the Wicked brand. It is a water-based lubricant designed specifically for use with toys. On that note, be sure to read which lubricants are compatible with your toy. In general, silicone-based lubricants should not be used with silicone-based toys.
When you are ready to use the vibrator on your genitals, lower it to the lowest possible power setting. Put it in a basic pattern setting, such as constant vibration. I always recommend starting slowly because vibrators can be very intense. If your last experience was too much for you, it seems you could definitely benefit by taking it a little easier this time. You can always increase the intensity as you go, but it is better to make your way to it.
Another important variable to play is the level of contact you want between the vibrator and your skin. Some women like to hold the vibrator directly against their clitoris. Other women don’t like that much feeling. It seems that you are in the last group. You can hold the vibrator against your lips, so it indirectly stimulates your clitoris. Or you can try to keep your underwear and use the vibrator on that. You can even place a sheet or towel on the vibrator to get less intensity.