Gifted plant

The light has been turned down to 50% for the last week and now She's on her last week of flushing and and starting to get alot of yellowing on the leaves . The bud has frosted up pretty nice now . The buds are rock hard and I am hoping after drying that it will still have alot of weight to it . Not a huge amount of smell to this plant even late in flower. It smells very earthy when you open the tent up but if you touch a bud it smells like lemon citrus with a very strong fuel smell . But it really smells tasty 😋. The next 3 waterings will have a cleanse added to the water I just really want to make sure it's as clean as I can get it since it is my first harvest and I dont want to fail lol . Can't wait to smoke my own weed lol .