Hello and welcome to jos.
calm down, deep breath! You have done really well going to smear and now you are in the system, you will find things move along pretty well.
firstly, do not panic about the colposcopy. It sounds a daunting experience but it will be no where as bad as you have envisioned in your mind. You will be asked to put on a gown unless you are able to well a loose fitting dress, and asked to remove your pants before sitting in a special recling chair with foot holds and be covered up with a sheet from the waist down. At this point you can close your eyes and not have to see anything else if you so wish!! With the sheet thee, you will not see your own nakedness down there anyway. You will have a nurse there to hold your hand and chat to you throughout the whole thing- my nurse did all the talking as I couldn't bring myself to say much! My husband was there holding my hand as well. The dr will sit on a chair and use a magnifying device like a microscope to look closely inside you having put the speculum thing inside you like at the smear. It is all done very quickly. He will then stain the cervix with iodine or similar on a brush which isn't painful to highlight any bad cells. If yours is a "see and do" hospital, they will then carry out a LLETZ procedure if they think is necessary which is pan free as it is done under LA, which itself didn't hurt me when given. The whole procedure is uncomfortable but not painful, I found, and done quickly. Afterwards I was able to walk out with no problems.
now, to the cancer part. It is highly unlikely to be cancer. Keep that in mind. Most people on this site post at the colposcopy stage and progress no further. It is a worrying and can be frightening time as no one likes to know they have had changes down below as the mind automatically leads you down the worse case scenario. HPV is found in most people who have sex and most people will never know it. Changes happen all the time and usually correct themselves without us even knowing. The fact your changes are low means they are just being cautious and making sure all is well. After the colposcopy they will keep a close eye on you with 6 mthly smears. most people who have changes do not get cervical cancer, that is why smears are so important, to keep an eye on early changes and sort them out before those naughty cells can progress into anything worse.
i am sorry that you have got to go through this but pleased you have come onto Jo's as it is a fab website. Have a look through the past posts. Ask anything you are not sure of. At my place of work, 6 other ladies have had colposcopy and LLETZ, two of them twice and all has been well. It is more common than you may think.