Even if you don't have anyone else to give you a hand, there are still a number of tools to help you handle your work more efficiently.
We are not talking only about the computing capabilities of computers or special programs and applications, but e.g. about templates, measuring devices, and other tools, which make the work easier and which are worth of looking for.
KOH-I-NOOR HARDTMUTH TIP: With a triangular scale ruler, you have several scales available at once. With the help of plastic French curves you can easily draw the required curve.