A THREAD FOR NEWCOMERS!

Hi everyone. I recently started playing HoMM 3 and am playing with a friend in HotA. I've already played a couple of games on the 2sm4d(3), 8mm6a, and Kerberos maps (or whatever they're called). I mainly play as the Necropolis faction. I have a few questions about the game and tactics: 1. Which Necropolis hero is the best on maps of all sizes? I know that mages are decisive on small maps, and warriors on large maps, but I don't know which ones specifically. 2. What is the best way to build when playing on the 8mm6a, Kerberos, and Jebus Cross maps: should I immediately go for Knights and build them in the first week? Should I build a Capitol, the last level of the Town Hall? 3. I know that hiring many heroes is useful (scouting, collecting free resources, building chains), but I have a problem: I hire 2 to 5 heroes on the first day, I have no money, I collect all the possible free resources, I fight a couple of battles with my main hero, but I still don't have enough resources. And I constantly buy and upgrade units (Trogolodites when playing as the Dungeon faction, and I upgrade Shakti immediately on the first day, for example). And the resources I accumulate during the week are immediately spent on the army at the beginning of the new week, and there are no resources or gold left to build T6 units. And it happens again and again. How can I deal with this? 4. And, in general, should I, as a relatively inexperienced player, hire 3-5 heroes in the first couple of days, or is it completely unnecessary? P.S.: I searched the forum, but I couldn't find a topic with questions from beginners about HotA. If there is one, please give me a link so I know where to ask questions next time