>>719260582
What are you drawing, and what (specifically) are you having trouble with?
This is what construction is for. You start large (big circles or whatever), establish your forms/symmetry, and then fill out the details on top of that. Many beginner artists fail to understand what construction is actually for. It's not a necessary step, but it is very helpful if you're having issues with perspective and form placement.
Post what you're doing here and maybe we can help more.