My advice would be that managing diabetes is a marathon not a sprint.
At the moment your BG is higher than you would like. This is likely to be your diabetes team dong a bit of trial and error to get your insulin dose just right. It is better, at first, to have too little insulin than have too much and hypo all the time.
Talk to your diabetes team about your concerns in the morning: they will probably increase your Lantus but this advice is better coming from healthcare professionals who know you than a stranger.
Diabetes diagnosis is a pest but now you have the diagnosis, you have the tools to get on with your life.