Quick note, don’t buy pure platinum packages! I would always recommend the “prime access” packages, especially the middle one. They are pricy, but well worth it! Usually the 2600 plat that comes with it are enough for me for at least 3-6 months, plus you get the Prime Warframe with installed catalysts (on weapons too) and a couple of weapons. The one right now is a good deal, as Mirage is an excellent fun frame to play, and even in higher level content effective. The Aka bolto primes are nice weapons too, only the melee weapon which comes with it isn’t too great, they deal good damage but I don’t like claw weapons. Give me swords or Katanas instead .
I know what you mean though, I farmed 3h last week just to get my new amp, needed one ressource to get get another one and so on. Howeever, if you played a while you pick lots of essential stuff on the side. There are only a few ressourcs I run out of a lot, mostly to upgrading the Dojo right now. Once you reach a certain point, where you have mostly planets unlocked and just play for fun, the grind becomes far more manageable.
I only put Orokin Reactors on stuff I like to use later, but not for Mastery fodder. Mastery fodder is a term to describe not worthwhile weapons, therefor only good to level up once to 30 so one gets the experince for that.
The Orokin stuff essentially doubles every point the weapon has and is permanent, once installed everything is doubled. Lets say you have a level 15 weapon, then you get 30 mod points, level it to 30 it will be 60, it doesn’t matter when you install it. Have a look out for missions, especially for important parts (mutagen mass, Orokin Cell, Neural Sensors, Neurodes, Fieldron, Detonite Injector) there are events popping up every now and then where you get one for doing the mission 3 times, people often run those with high level gear. Other missions will get you the assembled ressources, like Forma, Orokin Catalyst/Catalyst and Nitain. they are rare but they pop up veyer now and then, especially after the Warframe Dev Talk (fridays) .
ALWAYS DO THE NITAIN MISSIONS, thank me later ;).
In the beginning I would focus on getting further in the chart, to unlock new gear and ressources, and pick-up blueprints for the frames/weapons you would like to get on the side. A must get early on is Nekkro, his ability makes farming far more efficient. Also useful is a Kavat (cat) as I feel like they do more stuff, like double ressource drops. damage, crti chance increase, open boxes and so on, for me they are nicer the the “drones” (Sentinels)
You need to get to the Orokin Derelict for specific essential mods and for farmable ressources to the Orokin Void (prime parts). There are few shortcuts to the void early on as it has level 10ish content. Prime gear and rare mods sell well on the market for plat (trade chat), one can survie just by doing that. I think GuidesForUsAll has a very old series where he doesn’t buy any plat but instead finances Warframe only from selling gear on the trade channel.
Let me know what you would like to see, I can make a new farm guide (where to get what most efficiently) a list explaining which weapons are good early on.
Here are some lists for weapons/frames that I like to use, without any regard for mastery rank
Lenz (Dojo), the Arca Plasmor (Dojo), Rakta Cernos (I can gift you one if you hit Mastery 12), Tigris Prime, Ignis Wraith, Baza (dojo), Vectis Prime, Sybaris Prime, and Vaykor Hek.
any Nikana with the Prime and Dragon Nikana being my favourite, War, Glaive Prime, Guandao (dojo?) and Cassowar (dojo) (my recommendation, low mastery rank and extremely powerful).
Akbolto Prime, Akstiletto Prime, Euphona Prime, Sicarus Prime, Aklex Prime, Brakk, Mara Detron, Spira Prime, Twin Grakatas, Pandero, Vaykor Marelok, Dual Toxocyst
For warframes Saryn (my favourite), Harrow, Ivara, Ember, Mag, Nova, Mirage, Titania if I wanna be a fairy, Trinity