Dumb investor. I am also dumb but can share something..I bought Safaricom at over 7 also and access Kenya at 35. But What I did with Safaricom is to keep on buying as the prices went down i.e. dilute the cost. I bought some safaricom shares at 3 and my current cost average is 4.35 meaning that if I sell now as I plan to, I will make a profit even though I dumbly bought at 7. My average of Access Kenya is now 21.62 from a purchase of 35. When Access Kenya starts trading Xd, the price will fall to below 15 and I will buy more to reduce that average to below 20. After that prices will go up and I can then sell.
For KCB if you have money, start buying, you could dilute your price and hold for a year or so. But if you are scared sell and get out before you loose further. But then you will lock the loss. If I were you and had some, I will simply buy. I had ordered some KCB shares at 20, but when they announced the split I cancelled. I plan to take my rights and buy more at 15

Security analysis and intelligent investor are the best books but ive also been using "mastering fundamental analysis" by Thomset michael, "value investing" charles Mizrahi and for the technical analyst like qw, " a beginners guide to short term investing" by Toni Turner.

for those who need the above books in e format you can give your emails and ill forward.