Looking at your screenshots, your last full crawl took 335 hours, which are about 14 days. That means that when making changes you have to wait about 14 days to be able to search them. Once a crawl started it will run till it finishes, which means that your Incremental Crawls won't even start because the content source is still occupied by a full crawl. Your current crawl is running for 4 hours now and it probably will also take 14 days to finish.
Regarding your crawling schedule, you should rethink making a full crawl every night (as a reference, we are doing a full crawl once a month and an incremental crawl every 30 minutes). Here you can find the difference what's happening when doing a full crawl and when doing a incremental crawl
My suggestion for your current case is, that you stop the Full Crawl and manually start an incremental crawl and take a look how long this will take. Furthermore check your site applications for huge lists (also workflow lists) that may be responsible for the 2 weeks full crawl.