I can totally feel what your are telling us with your post @Tempura!
Im a Vegeta too, and i used to play both solo and with a small team made by a Piccolo and another Vegeta, nowdays i hunt solo or with the help of another Vegeta.
But back in time, i had some struggling too hunting solo the spiders, that's why i reccomend you to hunt in team and most importantly with a decent gear dedicated to those monsters.
You dont need a full set of t5 items of course, you can always seek for a cheaper one like a t4 or a t3...
Not to mention that back in those times Vegeta didn't even had the Galick Gun.. But still it was doable, pretty much doable.
Me and my friends always sticked hunting the suggested mobs (from the biolab tasks) Plus the daily from Prof. Tusk.
To be honest im not a rush player, i take it easy with the leveling up, i play for fun, not to grind... Now with almost 220 lvl, when i hunt solo i rather go with Crystal Robots, Undead Soldiers (small resp) or even Fallen Angel (small resp). In team we go to Crystal Robots, Undead Solider (big resp), Fallen Angel (big resp), sometimes Green Kiris, Gobi and Shamosaurus...
We don't use the pills still, but the exp gain is pretty much ok. If you consider the daily task boost too.
1h ~ 1.3h per day and we get a level and something more in teamhunt.
Keep the work up Temupra!