Iron, I will try to address your issues and answer everything as best I can below. I will say I really think you should consider coming back for training. It really sounds like you didn't scratch the surface in terms of learning how to use Radegast and I would love to help you if you ever decide to give SL another go.
let me try to address these issues as best I can. I am totally blind and use SL without a problem. In fact, most people have no idea I am blind in-world until I tell them.
Shopping is one of the things I love doing best. I have about 400 ballgowns in my growing collection and I don't even want to admit how many in-world dollars I have spent on those.
Most clothing items do not contain HUDs. There are some on Marketplace that have HUDs offering various color options, but most people just buy their outfits in tons of different colors like I do, or pick up freebies.
I am a member of a group in-world that offers a free gown every month. They have well over twelve years worth now so that means a lot of free ballgowns!
As for getting around: you are not supposed to teleport every time you want to move. In fact, in some places, teleportation is not allowed. I walk around all the time.
You see the objects around you via the objects list in Radegast. This list displays the items closest to you in meters by default, but you can change this. You interact with each item by right-clicking on it and then choosing from a serious of options.
As for clothing issues, I change clothes all the time and rarely have malfunctions. If someone in SL, be they sighted or blind, says they never have a waredrobe malfunction, I want to meet them. Lol. It is just part of it sometimes and we all find it pretty funny.
The issues being referred to here are from a lack of training. This just means you need to learn how to interact with Second Life more. Radegast is a viewer being built with the purpose of continuing to allow us to enjoy Second Life. With that being said, I understand SL isn't for everyone and I know not every blind person will find it enjoyable. But for me, I love exploring, hearing all the beautiful soundscapes, fishing and chatting with friends. I have made some lifelong friendships in-world and Virtual Ability is an amzing community.
I will post the Second Life website link below but you should sign up through Virtualability.org. Then go to Radegast.life to get the latest version of the Radegast viewer. When you log in, you will be teleported to Virtual Ability. Before you ever log in, however, you should e-mail Virtual Ability and set up a time for us to meet you in-world so we will be there to greet you and help you when you log in. There isn't always someone there at the welcome center and we can't be there if we don't know when you are coming in. So please contact us and we will help you in any way we can. This is what we do and we love it. Personally, I love seeing new blind users come in-world and gain their wings. I love seeing people learn and find their place in Second Life. It can be a rewarding experience but it does take time to learn.
Second Life's website, for reference only. The main viewer is not accessible:
http://www.secondlife.com
Marketplace is accessible though and it is a whole lot of fun. Lol.
I hope I have been able to answer some of your questions.