You'll have 100s of the same mod eventually. Yeah initially to share mods across weapons you don't want them leveled up too much. Focus on maximizing crit chance (cc), crit damage CD, status chance 60/60 mods and damage % mods and maybe heat and electrical.
Always have a forma being made in your foundry
Go to strata relay and wait for affinity blessing or resources blessing before playing missions to help boost progress
Pledge a syndicate and get the medallions for both syndications
Check overframe website for warframe builds people put together
Research how to get mods you don't own
After every mission view summary page and look at high damage/kills and see what warframe and weapons that person used
Get oxylus and the scan mods from cephalon simaris to get resources faster
Get warframe app and extractors and use extractors daily
Run night wave missions each week
For new planets to defeat the guards if you have revenant cast mesmer skin and run right up to the frame, let them attack you to get stunned then just kill them while they are limp lol
Ugh...my thumbs are tired....most of all enjoy the journey!
Why do you need to level your mech? You can do it passively just by running void fissure missions in RJ in a squad?
If solo do venus proxima survival until you can't survive. Run it public in case someone joins and sticks around. The issue with pubs is if someone extracts and you get forced extraction.
Watch your mech health. If shields are gone switch out to operator immediately and then to WF. Run into another room and fight a bit (30secs) and then go back to mech. Mech will be healed a bit and by drawing enemies away to another room you have more healing time
But as I said before bring your strongest archgun so you can kill enemies effectively and stay in mission.
If you can attract a squad in recruiting that's the best as you get some shared affinity
(XBOX)Player244024418's post in Beginner guide was marked as the answer