Ok, so do not use lotion internally, vaseline, petroleum jelly, baby oil, or egg whites (unless you want to I just wouldn't recommend them search it up). Oil based lubricants can cause condoms to break. I recommend using aloe vera gel it is waterbased so it won't break condoms, it feels nice too. If you are not sure if you are allergic to anything test it in your arm or something and check if there is anything off like redness or burning. To get yourself ready rub your clitoris and the surrounding areas, fondle yourself. Watch porn if you'd like or read a fanfic. To insert anything inside please clean the object cery well before and after. As the people have stated above there are plenty of options to use instead of an actual toy or real penis. If you are using your fingers the most common way is to lay on your back, stick in your middle and ring finger and start to gently push your fingers up in a "come here" motion and go on from there. Um make sure that your by yourself. Lock your door if you have one. If you are not sure about anything search it up, there are plenty of sources that can help with give you a better understanding than I can.
Also the electric toothbrush workd so good. When I do that I also use an empty cigar case ( cylindrical one!) that I lubricate with baby oil and I insert that into my vag and move it in and out while I use the electric brush on my clit
Not saying it is right or wrong. Clearly it works for you. I guess you are 14 or 15 now. Do you still do it?
Try watching porn that will get you wet