Hello Guys! I Am Seeking Knowledge For 1982 Quarter. Error Damage?

Hello everyone. I have looked up a coin here and there online but I have not taken the time to educate myself on Collecting/coin errors. However, last night while doing a little research I learned a few basic things. But I would love some input and knowledgable advice! 1. First I noticed the quarters edges. Curious is they are clipped planchet's with curved edge or if the coin was just dropped? There are two areas of the edges. And they are directly across from one another. One of the indentions seems to be smoother than the other. The other appears to have two small lines in the indention. 2. On the obverse, the letters on liberty E am R are faded or worn off to where you can not identify parts me the letters. And the rim is not visible in that area. Please note.. One of the possible planchet's, I mentioned in number one, is located onthe edge directly above the letters in liberty. #3 on obverse, slightly left of the year, is an small area that almost appears to be a bubble, perhaps a die error? please note..The second edge with the two small lines, is directly beneath the bubbled area. . #4 obverse about half way down the coin, on the left side, the rim isn't visible and in that area there may be a slight variance in color. Not sure what this is or how to further describe It. #5 the overall shape of the quarter seems a bit rigid. Its not a perfect circle. #6 without knowlege of grading system , overall the Washington's head and the writing lack definition and appears to be faint or very worn for the year. #7 reverse lettering on bottom of the coin is faded and a few letters are not visible. The coin looks like it slants downward in the area. There is no rim present. #8 top reverse the S and T in the word States in partially covered by the rim. This is also the area the edge is not consistent. #9 reverse, left side of coin, beneath the letter U, in united, the rim disappears from the left side following down to the bottom, and upward to the letter R in dollar, on the the right side of the coin. There is no presence of the rim. .#10 reverse, on the top area of eagles leg, just beneath his body is a small black line that doesn't appear to belong there. . Now I will attempt to post some photos. As I will be eagerly awaiting your educated input. Fairly certain this coin is damaged due to wear for the year. However, I will remain a bit hopeful that I am Wrong, and perhaps found a rare gem! anyway so much in advance.