Do you have a doctor? You need some quidance in upping your lantus. Do u run low at any time during the day? That's indication your taking too much. Running high during the ams is a sign of not enough basal (lantus). Also could be the liver dumping during the early ams. Your Sliding scale isn't going to work. Sliding Scale or set number of units not going to work. You need to use carb ratios and insulin sensitivity factors. Like Iyanla says, you need to do your work.
I suggest figuring out how much basal to take first. Requires skipping meals through all the meal periods (not all day), take lunch first, don't eat, test every 2 hour for six hours. If your blood sugar is constant then you are good to go. Then move on to insulin sensitivity factor. Skip a meal when your bg is a little high and inject one unit of insulin and test in 5 hours. This will give you what one unit of insulin lowers you by. Once you got that figured out, you will know how much insulin you require for corrections. For I:C (insulin carb ratios) most doctors start off with 1:15, Start then if you still run high , then do a correction, then use something like 1:10. you need to find out your needs. Everyone is different. This is where a good CDE is good to see because doctor's have so much to do. I figured it out on my own, so when I moved to the pump. My work was done.
Check with doctor because I'm not a doctor. I will add my doctor may not know everything, but he is willing to let me figure out things and that is good, because I would do it anyway. LOL