I can only add to all that Ross has said. Most of us who take the trouble to try to help posters on here, are professional engineers in one field of electronics, or another, and it would be grossly irresponsible of us to help an inexperienced poster to his death, by recommending that he start work on something that he did not understand. That is why you have suffered the type of replies that you have from some respondents.
For what it's worth, I think that I probably understood where you were coming from on this, in your earlier posts, but unfortunately, some of the observations that you then went on to make, didn't help your case one little bit, and the " abuse ( ?? ) " started. All I can ask is that you don't get too offended by this, and stop coming to the group. Whilst the nature of the posters has changed over the last five years, and probably the way that the group is used now, there are still many good people on here, ready and willing to help.
Please take Ross's good advice on board. It will help you in the future. Also, please remember that Newsgroups are international, and whilst the primary language in use is English, there are a number of different variants - as in English English, American English, Australian English and so on. What may seem like a clear statement to you, in whatever your variety of English is, might appear to be utter nonsense to someone else who speaks a different variety. Also, bear in mind that what might seem like an offensive reply to you, might just be harmless banter from the respondents point of view. I've seen many people get upset over this one.
Take a deep breath, calm down, and put your new fuse in. If it works, come back and tell us. If it doesn't work, or blows, again, come back and tell us, clearly, what does happen, and I'm sure we'll all just start again, and offer you what help we can.
Arfa