I think this approach is fine. I must say having been doing this for years, treating hundreds and thousands of men I have been underwhelmed with the results with topicals. Injections can cause peaks and valley and I have many younger men inject twice a week that smooths out the peaks and valleys. I think it is appropriate to follow the advice of your primary doctor and endocrinologist. I have just seen too many men spend months or years with gels with sub optimal results. Many men are diagnosed with depression and are not really depressed (I have no idea if this applies to you), but the presumed depression is base dupon low T.
My recommendation would be to pursue this but if a few months pass and results are modest consider another approach. Pellets are one approach to have smooth levels of T and are placed every 4 months.
3) D Simon, MA Charles, K Nahoul, G Orssaud, J Kremski, V Hully, E Joubert, L Papoz, E Eschwege. Association between plasma total testosterone and cardiovascular risk factors in healthy adult men: The telecom study. Journal of Clinical Endocrinology and Metabolism 82:2(FEB 1997):682-685. Some doctors give the low dose injections of 25 mg of testosterone cypionate or enanthate every 2 weeks. The treatment for men who have almost no testosterone is 10 times that dosage. A normal male produces the equivalent of 100 mg of testosterone (enanthate) each week.