Welcome, let me try to answer your questions you posted and then we will talk about being ready to cycle
First if you do 1cycle over time you will lose your gains, this explains why most just never do 1 cycle.
Second if you do a cycle the right way including proper nutrition, training and rest you will more than likely see substantial gains in both strength and physic. Keeping what you gain will depend on a couple of factors like ancillary drugs in pct, diet, and training.
That being said you question I'm I ready to cycle, well we need to take a look at your diet to see if your stuck in gains due to nutrition or you've reached your full genetic potential.
Post your diet and let's see where your at with your knowladge of nutrition
Also post your planned cycle and your planned pct.