All depends on your long term goals and where you are currently. If you have been training for several years and have truly reached or come close to your natural potential, then AAS might be what you need to continue to progress. 99% of the time that is not the case. There is no way of knowing how your body will recover from a cycle. Your test levels are great right now. You could recover perfectly, or you could recover half way or less, or anything in between. The fact is, the more cycles you run...eventually your natural test levels WILL decline. It's just a matter of time and depends on you and your body.
25 is fine to start cycling as long as you're prepared for all possibilities.