You received bad advice all the way around. For one, that's way too much gear for someone with a beginner's stats. Two, sexual dysfunction is NOT something you should just have to "deal with". It is true that sometimes advanced, competitive bodybuilders may have to put with it during prep, as there are several compounds and circumstances during prep that can potentially cause these issues. But when it comes to the off-season, it is always unavoidable. The individual may have to alter their PED protocol, but there is always ways to fix it...assuming it is PED-based (usually the case with bodybuilders).
In most cases, sexual dysfunction is due to:
* Elevated prolactin levels
* Elevated estrogen levels
* Deficient estrogen levels
* Inadequate DHT (or DHT substitute) levels
With knowledge and experience you may be able to diagnose the problem without bloodwork, but bloodwork is a near guaranteed way to find out where your problem lies.
The 19-nors (a sub-type of AAS based on its molecular structure) are the most common cause of sexual dysfunction. The biggest offenders are nandrolone and trenbolone, but trestolone can cause this too...it just isn't used as frequently so there are less reports.
On the other hand, aromatizable drugs can cause this problem as well...but through elevated estrogen levels rather than elevated prolactin. You may be able to partially ameliorate the issue by adding a strong, non-aromatizable androgen into your program (example: DHT, Proviron, etc). Although this doesn't technically "correct" the underlying problem (e.g. estrogen excess), it can sometimes indirectly eliminate/minimize this side effect by acting antagonistically to estrogen. In short, it provides a better estrogen to androgen ratio (improved balance).
Other offenders are anti-aromatase drugs, particularly those which interact with brain aromatase. the most common A.I.s which fall into this category are aromasin and letrozole. These drugs can quickly drive down brain estrogen levels, making the user much more likely to experience sexual dysfunction. An A.I like anastrozole (Arimidex) is much safer in this regard, as it is more selective than Aromasin or letrozole. Still, even anastrozole can cause this side effect through systemic estrogen depletion...if you use to much.
There is zero reason for someone in your situation to be forced to deal with this. At your current level of development, you can build muscle in a million different ways, which gives you a LOT of freedom in terms of drug selection.